My iMac is running extremely slow after upgrading to mountain lion

Ever since upgrading my OS, my computer is running extremely slow. Any tips to improve performance?

How much RAM is your system running? Do a Disk Repair and see if that resolves any issues.

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My Mac is running super slow after upgrading to Mountain Lion....Help!

I'm really not very good with computers so I may need a bit more basic help

First, back up all data immediately, as your boot drive might be failing.
One possible cause of a slow user interface is a large number of image or video files on the Desktop with preview icons. If you have more than a dozen or so such files, move them to another folder.
Otherwise, take these steps when you notice the slowdown.
Step 1
Launch the Activity Monitor application in any of the following ways:
☞ Enter the first few letters of its name into a Spotlight search. Select it in the results (it should be at the top.)
☞ In the Finder, select Go ▹ Utilities from the menu bar, or press the key combination shift-command-U. The application is in the folder that opens.
☞ Open LaunchPad. Click Utilities, then Activity Monitor in the icon grid.
Select the CPU tab of the Activity Monitor window.
Select All Processes from the menu in the toolbar, if not already selected.
Click the heading of the % CPU column in the process table to sort the entries by CPU usage. You may have to click it twice to get the highest value at the top. What is it, and what is the process? Also post the values for % User, % System, and % Idle at the bottom of the window.
Select the System Memory tab. What values are shown in the bottom part of the window for Page outs and Swap used?
Next, select the Disk Activity tab. Post the approximate values shown for Reads in/sec and Writes out/sec (not Reads in and Writes out.)
Step 2
If you have more than one user account, you must be logged in as an administrator to carry out this step.
Launch the Console application in the same way you launched Activity Monitor. Make sure the title of the Console window is All Messages. If it isn't, select All Messages from the SYSTEM LOG QUERIES menu on the left.
Select the 50 or so most recent messages in the log. Copy them (command-C) to the Clipboard. Paste (command-V) into a reply to this message.
When posting a log extract, be selective. Don't post more than is requested.
Please do not indiscriminately dump thousands of lines from the log into this discussion.
Important: Some personal information, such as your name, may appear in the log. Anonymize before posting.

Why has my Safari and MAIL slowed after upgrading to Mountain Lion on my MacBookPro ?

Why has my Safari and MAIL slowed after upgrading to Mountain Lion ? I have mid-2009 MBPro and have very fast Internet access router.

I have noticed the same thing on my MAC. Mail has become very "clunky"- Before Mountain Lion, whenever I clicked on a msg or a function (delete), it would respond immediately. With Mountain Lion there is an unacceptable hesitation. What is going on with this latest update?

MacPro usb very slow after upgrading to mountain lion

When backing up with Carbon Copy to an external USB drive very slow, eventually the system freezes. After upgrading to Mountain Lion its been a complete pain when trying to do back-ups. Does Apple have a USB software fix for this?

Disconnect the external drive and see whether there's an improvement.

My 2011 Macbook has become exceedingly slow after upgrading to Mountain Lion.

I have a 2011 Macbook which has become really slow after I upgraded to Mountain Lion in March. At first it wasn't that bad, but it's getting worse and my computer has begun to overheat even if I'm only using Google Chrome. I used to be able to keep multiple applications open at once and never closed many of them, but now if I want to get anything done I have to use the absolute minimum. My CPU has reached 86 degrees Celsius and temperatures slightly below this seem to be the average, even if I've only been on for ten minutes. It heats up VERY quickly. The fan has been operating at 2919 rpm, but it has said that for days and I don't know if this number should be changing? (I know that normal is about 2000 rpm, so I know it shouldn't be that high anyway.)
I'm currently working on cleaning out my harddrive of duplicate and unnecessary files and I plan on restoring to the default settings and backing everything up on an external harddrive... but are there other things I should be doing to speed my computer back up, like good programs to clean out my computer's temporary memory on a regular basis? The problem seems to have come on pretty fast though, so I don't know if there could be something else wrong with it and if I should take it into an Apple-approved repair place.
Also, I'm not one to illegally download/pirate things from sketchy websites, so I highly doubt a virus is the cause, especially given that Macs rarely get viruses.
Any suggestions of what to do and what programs/apps to install would be greatly appreciated! Thank you!

I have a 2011 Macbook which has become really slow after I upgraded to Mountain Lion in March. At first it wasn't that bad, but it's getting worse and my computer has begun to overheat even if I'm only using Google Chrome. I used to be able to keep multiple applications open at once and never closed many of them, but now if I want to get anything done I have to use the absolute minimum. My CPU has reached 86 degrees Celsius and temperatures slightly below this seem to be the average, even if I've only been on for ten minutes. It heats up VERY quickly. The fan has been operating at 2919 rpm, but it has said that for days and I don't know if this number should be changing? (I know that normal is about 2000 rpm, so I know it shouldn't be that high anyway.)
I'm currently working on cleaning out my harddrive of duplicate and unnecessary files and I plan on restoring to the default settings and backing everything up on an external harddrive... but are there other things I should be doing to speed my computer back up, like good programs to clean out my computer's temporary memory on a regular basis? The problem seems to have come on pretty fast though, so I don't know if there could be something else wrong with it and if I should take it into an Apple-approved repair place.
Also, I'm not one to illegally download/pirate things from sketchy websites, so I highly doubt a virus is the cause, especially given that Macs rarely get viruses.
Any suggestions of what to do and what programs/apps to install would be greatly appreciated! Thank you!

MacBook Pro slower after upgrading to mountain lion?

MacBook Pro 2009
Factory setting: Snow Leopard
Just 2 days ago, I reformatted my macbook back to its factory settings. Processing speed was fast and opening of apps does not seem to lag. Booting up and shutting down only took seconds. After reformatting my macbook, I upgraded my iOS from snow leopard to mountain lion and that is where the problems arises.
1. Booting up and shutting takes much longer time? It used to be less than 10 seconds however, now it takes about 40-50 seconds.
2. Opening of apps seemed to be slower. Example: When I open my iTunes, the app will bounce a few times and takes a few seconds (longer than before) for the app to appear.
3. Whenever I try to select something when surfing net or doing some other programs, the mouse cursor will never fail to change to the "colourful ball" which I will have to wait for it to load.
Can anyone help here?

Reinstalling Lion/Mountain Lion Without Erasing the Drive
Boot to the Recovery HD: Restart the computer and after the chime press and hold down the COMMAND and R keys until the menu screen appears. Alternatively, restart the computer and after the chime press and hold down the OPTION key until the boot manager screen appears. Select the Recovery HD and click on the downward pointing arrow button.
Repair the Hard Drive and Permissions: Upon startup select Disk Utility from the main menu. Repair the Hard Drive and Permissions as follows.
When the recovery menu appears select Disk Utility. After DU loads select your hard drive entry (mfgr.'s ID and drive size) from the the left side list. In the DU status area you will see an entry for the S.M.A.R.T. status of the hard drive. If it does not say "Verified" then the hard drive is failing or failed. (SMART status is not reported on external Firewire or USB drives.) If the drive is "Verified" then select your OS X volume from the list on the left (sub-entry below the drive entry,) click on the First Aid tab, then click on the Repair Disk button. If DU reports any errors that have been fixed, then re-run Repair Disk until no errors are reported. If no errors are reported click on the Repair Permissions button. Wait until the operation completes, then quit DU and return to the main menu.
Reinstall Lion/Mountain Lion: Select Reinstall Lion/Mountain Lion and click on the Continue button.
Note: You will need an active Internet connection. I suggest using Ethernet if possible because it is three times faster than wireless.

My macpro is slower after upgrading to mountain lion

Anyone having similar issues? I have more pinwheels after upgrading.

Reinstalling Lion/Mountain Lion Without Erasing the Drive
Boot to the Recovery HD: Restart the computer and after the chime press and hold down the COMMAND and R keys until the menu screen appears. Alternatively, restart the computer and after the chime press and hold down the OPTION key until the boot manager screen appears. Select the Recovery HD and click on the downward pointing arrow button.
Repair the Hard Drive and Permissions: Upon startup select Disk Utility from the main menu. Repair the Hard Drive and Permissions as follows.
When the recovery menu appears select Disk Utility. After DU loads select your hard drive entry (mfgr.'s ID and drive size) from the the left side list. In the DU status area you will see an entry for the S.M.A.R.T. status of the hard drive. If it does not say "Verified" then the hard drive is failing or failed. (SMART status is not reported on external Firewire or USB drives.) If the drive is "Verified" then select your OS X volume from the list on the left (sub-entry below the drive entry,) click on the First Aid tab, then click on the Repair Disk button. If DU reports any errors that have been fixed, then re-run Repair Disk until no errors are reported. If no errors are reported click on the Repair Permissions button. Wait until the operation completes, then quit DU and return to the main menu.
Reinstall Lion/Mountain Lion: Select Reinstall Lion/Mountain Lion and click on the Continue button.
Note: You will need an active Internet connection. I suggest using Ethernet if possible because it is three times faster than wireless.

IMac extremely slow after upgrading to OS Lion...suggestions please..

We recently upgraded our iMac to OS Lion from Snow Leopard and it seems like everything now takes twice as long to start. Opening applications, opening documents, switching to another user name, pretty much everything takes forever. I love the operating system, but feel like I am using a 10 year old computer. If anyone here has suggestions on how to speed things up, I would greatly appreciate it.
I have tried logging out all other users to free up some of the memory and that really doesn't help.
I love my Mac, please help....

If it is a new installation, spotlight can take forever to do the first indexing. I put my Sleep option in Power preferences to "never" (On mains power that is) and leave the computer lid open / on all night.
There are also other things going on, like, software updates,(both from Apple and third party), maintenance scripts (that run on schedule at night), Backup, iDisk and iCloud syncs (the first uploads can be large), etc.
Once the initial cludge is cleared things get much better. But get that RAM upgrade. Crucial delivered mine within 24 hours of ordering
You'll need a very small screwdriver!

IPhoto is extremely slow after upgrading to OSX Maveric

Has anyone noticed that iPhoto is extremely slow after upgrading to OSX Maverick

I've noticed that it isn't.
There are 9 different versions of iPhoto and they run on 8 different versions of the Operating System. The tricks and tips for dealing with issues vary depending on the version of iPhoto and the version of the OS. So to get help you need to give as much information as you can. Include things like:
- What version of iPhoto.
- What version of the Operating System.
- Details. As full a description of the problem as you can. For example, if you have a problem with exporting, then explain by describing how you are trying to export, and so on.
- History: Is this going on long? Has anything been installed or deleted? - Are there error messages?
- What steps have you tried already to solve the issue.
- Anything unusual about your set up? Or how you use iPhoto?
Anything else you can think of that might help someone understand the problem you have.

IMac 27" running very slow after 10.6.6 update

After updating to the newest OSX build my iMac is running extremely slow. Boot times are the same but once I'm in OSX it takes twice as long to do anything. If I click on the systems icon it takes over 10 seconds to open. I attempted to verify my hard drive permissions and it shows an estimated time of over 4 hours. I'm at a lost as to what the **** happened. I've run several hardware diagnostics and it finds no problems. I also have boot camp installed and Windows 7 runs perfectly. Has anyone experienced something like this with the 10.6.6 build?

Hi e-nun
I feel your pain am having exactly the same problems. I have been doing a few processes to try and see what will work. Here is what i have done to start..
1. Boot the computer using the discs that came with the imac then load disk utility from that. Repair Disk Permissions.
2. Clear the PRAM and the NVRAM
3. Go to Spotlight preferences click on the Privacy Tab and drag your imac's HDD to that list. Wait for around 10-15secs then use the little minus button to remove it. Once you close the window Spotlight will start to re-index the HDD. You will notice the little dot inside the magnifying icon for spotlight.
As im writing this my Imac is currently re-indexing and fingers crossed its running better than after the update. Whilst its been reindexing i haven't had any slow down issues. Ill keep you posted...
Did you find anything else out??

My MacPro is extremely slow after upgrading to Yosemite 10.10, even while reading my newspaper on PDF

Problem description:
My Mac Pro is extremely slow after upgrading to Yosemite 10.10, even while reading my newspaper on PDF
This is my EtreCheck print
EtreCheck version: 2.0.11 (98)
Report generated 17. november 2014 kl. 10.49.28 CET
Hardware Information: ℹ️
MacBook Pro (13-inch, Mid 2012) (Verified)
MacBook Pro - model: MacBookPro9,2
1 2.5 GHz Intel Core i5 CPU: 2-core
4 GB RAM Upgradeable
BANK 0/DIMM0
2 GB DDR3 1600 MHz ok
BANK 1/DIMM0
2 GB DDR3 1600 MHz ok
Bluetooth: Good - Handoff/Airdrop2 supported
Wireless: en1: 802.11 a/b/g/n
Video Information: ℹ️
Intel HD Graphics 4000 -
Color LCD 1280 x 800
System Software: ℹ️
OS X 10.10 (14A389) - Uptime: one day 15:45:13
Disk Information: ℹ️
TOSHIBA MK5065GSXF disk0 : (500,11 GB)
S.M.A.R.T. Status: Verified
EFI (disk0s1) <not mounted> : 210 MB
Recovery HD (disk0s3) <not mounted> [Recovery]: 650 MB
Macintosh HD (disk1) / [Startup]: 498.88 GB (290.89 GB free)
Encrypted AES-XTS UnlockedConverting
Core Storage: disk0s2 499.25 GB Online
MATSHITADVD-R   UJ-8A8
USB Information: ℹ️
Apple Inc. FaceTime HD Camera (Built-in)
Apple Inc. Apple Internal Keyboard / Trackpad
Apple Inc. BRCM20702 Hub
Apple Inc. Bluetooth USB Host Controller
Apple Computer, Inc. IR Receiver
Thunderbolt Information: ℹ️
Apple Inc. thunderbolt_bus
Gatekeeper: ℹ️
Mac App Store and identified developers
Kernel Extensions: ℹ️
/Library/Extensions
[loaded] net.telestream.driver.TelestreamAudio (1.1.1 - SDK 10.8) Support
/System/Library/Extensions
[not loaded] com.devguru.driver.SamsungComposite (1.4.20 - SDK 10.6) Support
/System/Library/Extensions/ssuddrv.kext/Contents/PlugIns
[not loaded] com.devguru.driver.SamsungACMControl (1.4.20 - SDK 10.6) Support
[not loaded] com.devguru.driver.SamsungACMData (1.4.20 - SDK 10.6) Support
[not loaded] com.devguru.driver.SamsungMTP (1.4.20 - SDK 10.5) Support
[not loaded] com.devguru.driver.SamsungSerial (1.4.20 - SDK 10.6) Support
Launch Agents: ℹ️
[loaded] com.divx.dms.agent.plist Support
[loaded] com.divx.update.agent.plist Support
[loaded] com.oracle.java.Java-Updater.plist Support
Launch Daemons: ℹ️
[failed] com.adobe.fpsaud.plist Support
[loaded] com.microsoft.office.licensing.helper.plist Support
[loaded] com.oracle.java.Helper-Tool.plist Support
[loaded] com.oracle.java.JavaUpdateHelper.plist Support
[invalid?] com.torch.update.agent.plist Support
User Launch Agents: ℹ️
[loaded] com.genieo.completer.download.plist Support
[loaded] com.genieo.completer.ltvbit.plist Support
[loaded] com.genieo.completer.update.plist Support
[loaded] com.google.keystone.agent.plist Support
User Login Items: ℹ️
None
Internet Plug-ins: ℹ️
FlashPlayer-10.6: Version: 15.0.0.223 - SDK 10.6 Support
QuickTime Plugin: Version: 7.7.3
DivX Web Player: Version: 3.2.3.1164 - SDK 10.6 Support
Flash Player: Version: 15.0.0.223 - SDK 10.6 Support
OVSHelper: Version: 1.1 Support
Default Browser: Version: 600 - SDK 10.10
SharePointBrowserPlugin: Version: 14.4.4 - SDK 10.6 Support
Unity Web Player: Version: UnityPlayer version 4.5.5f1 - SDK 10.6 Support
Silverlight: Version: 5.1.20913.0 - SDK 10.6 Support
JavaAppletPlugin: Version: Java 8 Update 25 Check version
User Internet Plug-ins: ℹ️
NPRoblox: Version: 1, 2, 8, 25 - SDK 10.10 Support
Google Earth Web Plug-in: Version: 7.1 Support
Safari Extensions: ℹ️
Omnibar
3rd Party Preference Panes: ℹ️
Flash Player Support
Java Support
Perian Support
Time Machine: ℹ️
Skip System Files: NO
Auto backup: YES
Volumes being backed up:
Macintosh HD: Disk size: 498.88 GB Disk used: 207.99 GB
Destinations:
Elements [Local]
Total size: 1.00 TB
Total number of backups: 0
Oldest backup: -
Last backup: -
Size of backup disk: Adequate
Backup size 1.00 TB > (Disk used 207.99 GB X 3)
Top Processes by CPU: ℹ️
      89% lsregister
      3% WindowServer
      1% mds
      1% sysmond
      0% mtmd
Top Processes by Memory: ℹ️
142 MB Preview
125 MB com.apple.WebKit.WebContent
125 MB Finder
86 MB ocspd
77 MB com.apple.WebKit.Plugin.64
Virtual Memory Information: ℹ️
335 MB Free RAM
1.63 GB Active RAM
1.32 GB Inactive RAM
776 MB Wired RAM
17.27 GB Page-ins
345 MB Page-outs

Check out this thread: https://discussions.apple.com/thread/6466590?start=0&tstart=0.
For many users, the Folder Action Dispatcher is the culprit that eats almost all available memory if it is enabled on ~/Library/LaunchAgents.

My final cut is running extremely slow after having for 6 months. I use external hard drives and save nothing on my computer. it takes a long time to render now. do you think something is wrong with computer. took it to mac store but they fail to help

my final cut is running extremely slow after having for 6 months. I use external hard drives and save nothing on my computer. it takes a long time to render now. do you think something is wrong with computer. took it to mac store but they fail to help me. I have a 13 inch mac book pro 10.6.8 8gb 2.3 gfz intel core i5

What did Apple tell you about what they did (or did not) find here?
See if working on the main disk is any faster.
USB2 is glacial, as I/O interconnects go. And USB2 disks have been known to fail, or sometimes to drop back to USB1 speeds, too. FireWire 800 is substantially faster than USB2, but still not as fast as the internal drive connections can provide.
Put another way, start varying your configuration, and see which configuration changes (still) have the problem, and which don't.

My macbook pro is running really slow after upgrade to Mavericks

my macbook pro is running really slow after upgrading to Mavericks....any ideas?

OS X Mavericks: If your Mac runs slowly
The above link is not very useful, so if it doesn't help read on.
There are many potential reasons that a Mac may be running slower than expected, but more information is required to begin troubleshooting, much more.
Back up your documents and everything else important to you before proceeding. It is premature to conclude your hard disk is failing, but the symptoms you describe may presage an impending disk failure, and you should have backups anyway.
To help determine the possible causes of this behaviour read the following. None of what follows is intended to fix anything, but it will provide the additional information required to advance troubleshooting:
Boot OS X Recovery by holding ⌘ and r (two fingers) while you start your Mac. At the Mac OS X Utilities screen, select Disk Utility. Select your startup volume (usually named "Macintosh HD") and click the Repair Disk button. Describe any errors it reports in red.
When it finishes restart your Mac and test again for operation. If it's still not behaving as you expect it should, please post the results of EtreCheck in accordance with the following instructions:
Apple Support Communities contributor etresoft wrote a very useful app to quickly gather certain system information that may help point to a cause of this problem. Go to his website, download and run EtreCheck:
http://www.etresoft.com/etrecheck
Etrecheck will be in your Downloads folder. Open it from there. You may see the following dialog box:
Click Open - etresoft contributes to this forum frequently and can be considered a trustworthy developer.
It will take a moment to run as it collects its data.
Copy and paste its output in a reply.
Do not be concerned about anything that says "Problem" or “failed” or anything else that may appear in red.
EtreCheck was designed to remove any personal information (such as your computer's name and serial numbers) but if you see anything that looks like an email address or any other personal information that should not be divulged to others, please delete or obscure that information when you post the reply.
When you are finished with EtreCheck, quit the program. It occupies very little space, and you can keep it or drag it to the Trash as you wish.
After completing the above please determine if the problems also occur in "Safe Mode":
Safe Mode or "Safe Boot" is a troubleshooting mode that bypasses all third party system extensions and loads only required system components. Read about it: Starting up in Safe Mode
You must disable FileVault before you can start your Mac in Safe Mode.
Starting your Mac in Safe Mode will take longer than usual, graphics will not render smoothly, audio is disabled on some Macs, and some programs (iTunes for example) may not work at all.
Merely starting your Mac in Safe Mode is not intended to resolve the problem, it's to observe its performance without certain additional components.
To end Safe Mode restart your Mac normally. Shutdown will take longer as well.
System performance problems for reasons that cannot be isolated to any other cause justify an SMC reset. Be sure to read the procedure carefully and follow all the steps exactly as written, even if they seem inapplicable or trivial.

I am using iPhone 5C. My wifi is extremely slow after upgrade to ios8. Buffering online video and songs taking forever. What's going on?

I am using iPhone 5C. My wifi is extremely slow after upgrade to ios8. Buffering online video and songs taking forever. What's going on?

I have same problem. Reboot helps for a few minutes.

My mbp (mid 2010) is running extremely slow after installing some mavericks updates on May 22nd.

My mbp (mid 2010) is running extremely slow after installing some mavericks updates on May 22nd. Earlier I thought this behavior is due to spotlight indexing but it finished after 3 days. I deleted all caches from library. But no luck, still running extremely slow. I checked activity monitor for cpu usage, it shows above 90% is idle. The memory usage always shows PM - 4 GB, Memory Used 3.96 GB, VM - 4 GB, Swaped used 0 bytes, App Memory 1.82 GB, File Cache 1.44 GB, Wired Memory 480 MB.
Thanks in adavnce for help.

Was it the combo updater that was installed or the OS X 10.9.3 update. There is a difference.
MORE INFO ON WHY RUNNING COMBO FIXES ISSUES
Apple updates available from the Software Update application are incremental updates. Delta updates are also incremental updates and are available from Apple Downloads (software updates are generally smaller than delta updates). The Combo updates contain all incremental updates and will update files that could have become corrupted.
Combo updaters will install on the same version as they're applying--no need to roll back or do a clean install. So if you think you've got a borked 10.8.4 install from a regular update, just run the 10.8.4 Combo Updater on that system.
"Delta" updaters can only take you from one version to the next. For example: 10.9.1 to 10.9.2. If somehow the 10.9.2 is missing something it should have, and that something isn't changed between 10.9.1 and 10.9.2 it will still be stale after the delta update.

My iMac is running extremely slow after upgrading to mountain lion

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