Why does Lion run slower than Snow Leopard?

I recently loaded Lion on my older MacBook Pro 2.2 GHz Intel Core Duo, with 4 GB 677 MHz DDR2 SDRAM. and it runs slower and the it seems to be hotter and consume more battery power. Are the configuration option that can reduce the power drain?

You may have some mildly-incompatible third-party software, or you may be doing tasks that demand a lot of RAM and 4 GB is no longer enough on a system that has double the memory requirements of SL. Or could be something else entirely. Take a look at Understanding upgrade nightmares* for more information and some potential solutions.
* Disclaimer: links to my pages may give me compensation, and should not be taken as endorsement of my services by Apple.

Similar Messages

Why does Lion seem slower than Snow Leppard?

Why does Lion seem slower than Snow Leppard?

michaelfromrice lake wrote:
Why does Lion seem slower than Snow Leppard?
It's anyone's guess. Startup and shutdown as well as application launches take longer in Lion than they did in Snow Leopard on the three Macs that I "upgraded," and I also see the spinning beach ball more often than I used to. Add to that the HDMI-related crashes on my Mac mini...
Quite frankly, I have yet to see where I have gained any advantages after upgrading to Lion, and I definititely have problems that I didn't have under Snow Leopard. Of course, all of it must be my fault, as Apple would never ever relase an upgrade that was less than perfect.

Lion runs slower than Snow Leopard

We called about our very new Power Mac with 12 cores. We are running Maple on that machine, and less than 2.4% of one CPU is used for our calculations in the Lion 10.7.4 windows mode. The last advisor advised us to install Snow Leopard on the new machine.
We tried that as we had bought a family pack of MacOSX 10.6.3 some time ago and used that for two older machines. But the new machine complained that the installation can not be performed as this version apparently uses a fat binary.
We have also contacted Maplesoft, and they believe that Java and the GUI in Lion may cause the delay in the calculations. They advised us to run in Command Line mode using the nohup feature (In Terminal ending the UNIX command by &). We have tried this and found CPU use of 100% and even higher in parts where parallel processing was used. However, running in the Command Line version of Maple is not attractive, as it takes away most of the interactive response with the program and produces results in linear form that are hard to read.
An old small 2 core PowerBook on which Snow Leopard runs is now our top machine, as long as the problem on the brand new machine is not resolved.
Do you have any further suggestion? We have wasted a lot of time and money on the new Power Mac so far.

Power Mac? Do you mean Mac Pro? Power Macs aren't capable of running anything higher than Mac OS X 10.5.8 Leopard because Snow Leopard and Lion are Intel-only.

Why is Mac OS X 10.7 so much slower than Snow Leopard? It isnt smooth, applications are slow and most dont respond, and dowloads take hours, minutes.

Why is Mac OS X 10.7 so much slower than Snow Leopard? It isnt smooth, applications are slow and most dont respond, and dowloads take hours, not minutes.

Something is seriously wrong with your installation or you are critically low on RAM, like below 2 GB.
How much RAM is in your machine?
Have you tried a Recovery?

PS CS4 seems to run slow under Snow Leopard...

Hello, this is my first post at the forums. I just did some tests and am a bit baffled.
Scenario:
Computer 1:
- New Mac Pro quad xeon running snow leopard and PS extended 10.0.1, 6 gigs of ram with only photoshop running
- opened a 52"x52" 300 dpi image.
- cropped image and the cropping took a bit longer than I hoped for maybe about 3-4 min.
Computer 2:
- Imac Intel core 2 duo with 2 gigs of ram with PS and AI and other apps running
- opened same image
- cropping was faster than the Mac pro.... took about 2-3 min
Any thoughts?
Another Scenario:
Computer 1:
- New Mac Pro quad xeon running snow leopard and PS extended 10.0.1, 6 gigs of ram with only photoshop running
- opened a 2.8 gig 300 dpi image.
- cropped image and got a message saying operation can't be done because out of ram
Computer 2:
- Quad g5 6 gigs or ram
- opened same file
- was able to crop but it took a while.
Any thoughts?
I wanted to see if it's the OS or the Machine but I tried to install 10.5 in the new mac pro and it won't let me.
Just wanted to share been looking around for any info about app speeds.
- Nico

Oops I meant 11.0.1 also to clarify the one running on the imac is PS CS4 standard not extended but the one running on the G5 and Mac pro is Extended.

Is mountain lion slower than snow leopard

Hi i have mac book pro, dual core processor with 4GB Ram. I brought it with Snow Leopad installed. after upgrading to Lion OX i feel drop in performance. I am hesitating to install mountain lion feeling it may slow down more. Can somebody advice on this ?
Thanks & Regards,
Siva.

Hi i have mac book pro, dual core processor with 4GB Ram. I brought it with Snow Leopad installed. after upgrading to Lion OX i feel drop in performance. I am hesitating to install mountain lion feeling it may slow down more. Can somebody advice on this ?
Thanks & Regards,
Siva.

Why does Firefox run slower on Wondows 7 64bit?

Ok so I just totally rebuilt my system but instead of reinstalling Windows 7 32bit I decided I wanted to run a 64bit version instead. But when I ran 32bit Firefox was my fastest browser and now that I have a 64bit its in 2nd place to IE9 beta. So was just wondering really if there was a 64bit edition of Firefox that I'm not able to find.

Have you tuned your windows system and gotten rid of indexing and excess processes. See this tuning guide

Why does Photoshop free transform make snow leopard crash

Every time I use free transform in Photoshop CS5 it makes my computer crash - no warning, nothing, just a dead black screen. Im on an Intel Core i5 with 16 GB of memory. It's driving me nuts. Anyone out there know what to do, please ?

It shouldn't happen, but it is possible that some of your RAM has a problem. Try taking out half the RAM and see if it still happens. If it no longer happens, the problem is in the half of the RAM you took out. If it still happens, swap out with the other half of the RAM and continue with this process of elimination until you find the stick of RAM that's doing it. If it happens no matter what RAM is installed, it could be something else, but not sure what it would be since most people don't have that problem.

Why does audio run faster than video after burning my iMovie project in iDVD?

I created a project in iMovie HD and shared it to iDVD 6. When I played the finished disc, I noticed that the audio ran much faster than the video. I rechecked my movie and audio clips in iMovie to make sure they were matched correctly, and I saw no problem there. I burned the disc again through iDVD and got the same problem when I played it in a DVD player.
I have never had this problem before and I've been working on dvd projects all week. I think the only difference with this movie project is that I had movie clip audio and background audio playing at the same time at some parts of the movie, but I don't know if that's the issue.
Any suggestions?

Hi
And just to add to OT-s brilliant suggestions - really - Do a Save as a DiskImage ! IMPORTANT !
• When free space goes down on the Start-Up hard disk to 5Gb or less - strange things occurs - Yes even audio out of sync - to not working DVD at all.
I secure a minimum of 25Gb free space when using SD-video to iDVD - if HD material I would guess 4-5 times more as it has to be re-calculated into SD and this needs space.
DVD - is as standard SD-Video (as old time CRT-TVs) - even if You use DVD-Studio Pro or iDVD or Roxio Toast™ - That's what it is and using HD material doesn't improve a bit (may be even give a lesser result)
Yours Bengt W

Why does Lion need to be rebooted more than Snow Leopard?

After upgrading to Lion I have noticed that I need to reboot Lion more often than Snow Leopard. Is this just me or is this something others have seen?

I think this is just you. Nevertheless I would install the 10.7.1 update if you have not yet done so. This will improve the stability of Lion somewhat. But before you do that I would reinstall Lion. You may find this will improve things quite a bit especially if you upgraded from Snow Leopard. This will not erase the drive so you won't lose any of your files.
Reinstalling Lion
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. Alterhatively, 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: Select Reinstall Lion and click on the Continue button.
Note: You can also re-download the Lion installer by opening the App Store application. Hold down the OPTION key and click on the Purchases icon in the toolbar. You should now see an active Install button to the right of your Lion purchase entry. There are situations in which this will not work. For example, if you are already booted into the Lion you originally purchased with your Apple ID or if an instance of the Lion installer is located anywhere on your computer.

Since loading Lion, I've experienced much more instability than Snow Leopard. In particular, Mail crashes with regularity, full-screen apps seem to run slower and show the beach ball more often for longer, etc. I'm disappointed with the performance. Any

Since loading Lion, I've experienced much more instability than Snow Leopard. In particular, Mail crashes with regularity, full-screen apps seem to run slower and show the beach ball more often for longer, etc. I love the features, but I'm disappointed with the performance. Any help coming from Apple? I've been sending them so many reports after crashes, that their file must be full!

Summoning max. courage, I did what you advised. Here is the result. What does this tell you? My Lion 7.2 (mid 2011 iMac) has several annoying glitches (which I have so far tolerated through gritted teeth) but none that have actually stopped me working.
BTW, I see several items involving CleanMyMac which I did not know I had. It is generally villified as a trouble-maker. Spotlight can't find an app. or a utility of that name. How can I get rid of what's there please? Just delete?
Last login: Thu Nov 3 20:55:11 on console
Steve-Kirkbys-iMac:~ stevekirkby$ kextstat -kl | awk ' !/apple/ { print $6 $7 } '
com.AmbrosiaSW.AudioSupport(4.0)
Steve-Kirkbys-iMac:~ stevekirkby$ sudo launchctl list | sed 1d | awk ' !/0x|apple|com\.vix|edu\.|org\./ { print $3 } '
Password:
com.openssh.sshd
com.stclairsoft.DefaultFolderXAgent
com.microsoft.office.licensing.helper
com.bombich.ccc.scheduledtask.067493DB-2728-4DF3-87D8-092EF69086E8
com.bombich.ccc
com.adobe.SwitchBoard
Steve-Kirkbys-iMac:~ stevekirkby$ launchctl list | sed 1d | awk ' !/0x|apple|edu\.|org\./ { print $3 } '
com.sony.PMBPortable.AutoRun
uk.co.markallan.clamxav.freshclam
com.veoh.webplayer.startup
com.macpaw.CleanMyMac.volumeWatcher
com.macpaw.CleanMyMac.trashSizeWatcher
com.adobe.ARM.202f4087f2bbde52e3ac2df389f53a4f123223c9cc56a8fd83a6f7ae
com.adobe.AAM.Scheduler-1.0
Steve-Kirkbys-iMac:~ stevekirkby$ ls -1A {,/}Library/{Ad,Compon,Ex,Fram,In,La,Mail/Bu,P*P,Priv,Qu,Scripti,Sta}* 2> /dev/null
/Library/Components:
/Library/Extensions:
/Library/Frameworks:
AEProfiling.framework
AERegistration.framework
ApplicationEnhancer.framework
AudioMixEngine.framework
FxPlug.framework
NyxAudioAnalysis.framework
PluginManager.framework
ProFX.framework
ProMetadataSupport.framework
TSLicense.framework
iLifeFaceRecognition.framework
iLifeKit.framework
iLifePageLayout.framework
iLifeSQLAccess.framework
iLifeSlideshow.framework
/Library/Input Methods:
/Library/Internet Plug-Ins:
AdobePDFViewer.plugin
EPPEX Plugin.plugin
Flash Player.plugin
Flip4Mac WMV Plugin.plugin
JavaAppletPlugin.plugin
Quartz Composer.webplugin
QuickTime Plugin.plugin
SharePointBrowserPlugin.plugin
SharePointWebKitPlugin.webplugin
Silverlight.plugin
flashplayer.xpt
iPhotoPhotocast.plugin
nsIQTScriptablePlugin.xpt
/Library/LaunchAgents:
com.adobe.AAM.Updater-1.0.plist
com.sony.PMBPortable.AutoRun.plist
/Library/LaunchDaemons:
com.adobe.SwitchBoard.plist
com.apple.remotepairtool.plist
com.bombich.ccc.plist
com.bombich.ccc.scheduledtask.067493DB-2728-4DF3-87D8-092EF69086E8.plist
com.microsoft.office.licensing.helper.plist
com.stclairsoft.DefaultFolderXAgent.plist
/Library/PreferencePanes:
.DS_Store
Application Enhancer.prefPane
Default Folder X.prefPane
DejaVu.prefPane
Flash Player.prefPane
Flip4Mac WMV.prefPane
/Library/PrivilegedHelperTools:
com.bombich.ccc
com.microsoft.office.licensing.helper
com.stclairsoft.DefaultFolderXAgent
/Library/QuickLook:
iWork.qlgenerator
/Library/QuickTime:
AppleIntermediateCodec.component
AppleMPEG2Codec.component
DesktopVideoOut.component
DivX 6 Decoder.component
FCP Uncompressed 422.component
Flip4Mac WMV Advanced.component
Flip4Mac WMV Export.component
Flip4Mac WMV Import.component
LiveType.component
/Library/ScriptingAdditions:
.DS_Store
Adobe Unit Types.osax
Default Folder X Addition.osax
/Library/StartupItems:
Library/Address Book Plug-Ins:
Library/Frameworks:
EWSMac.framework
Library/Input Methods:
.localized
Library/Internet Plug-Ins:
Library/LaunchAgents:
com.adobe.AAM.Updater-1.0.plist
com.adobe.ARM.202f4087f2bbde52e3ac2df389f53a4f123223c9cc56a8fd83a6f7ae.plist
com.macpaw.CleanMyMac.trashSizeWatcher.plist
com.macpaw.CleanMyMac.volumeWatcher.plist
com.veoh.webplayer.startup.plist
uk.co.markallan.clamxav.freshclam.plist
Library/PreferencePanes:
.DS_Store
Perian.prefPane
WindowShade X.prefPane
Library/QuickTime:
AC3MovieImport.component
Perian.component
Library/ScriptingAdditions:
Steve-Kirkbys-iMac:~ stevekirkby$

Anyone else's Snow Leopard running slower than version 10.5?

My hard drive crashed a few weeks ago and I decided to have the Apple Store upgrade my operating system to 10.6.3 and I have found that it's slower than the previous version. Also, Adobe InDesign doesn't print from the new version.
Is anyone having these problems?? This could make me revert back to a PC

Well, yes, if it was a new HD and your old drive was dead, they would have had to do an install from scratch.
If the old drive was still running they would have done an upgrade & migrate unless you told them otherwise. Problem with migrating is often higher powered apps like CS3, Final Cut, Aperture, etc. don't run well if at all and you end up having to do an erase & install anyway.
What is the exact model iMac you have, and how much RAM? What HD did you buy?
CS3 is old at this point and my understanding is Adobe does not support it on Snow Leopard. Are you experiencing the slowness just with CS3 or with everything (say, Safari, Office, iTunes, etc?)

Why does the new version FireFox run slower than the old one?

I have a fairly new computer but Firefox runs slower than the older version. Can this be remedied?

That does not sound right. I recommend rebuilding your VI. Beore you do, open the top level VI and press contol-shift-run arrow to perform a manual binary recompile. This makes LabVIEW recompile the whole code. Most times you will not see anything happen but occasionally an error will surface. Be sure to save the VI then rebuild it.
You may also need to reinstall the LabVIEW run time engine and/or LabVIEW. I would start with the run time engine first.

I have not upgraded to Mountain Lion yet, have 3 major apps (acrobatpro) and adobe image ready, and apple works that is not compatible, does anyone know how long snow leopard will be supported. Don't want to upgrade until I purchase new iMac next year.

I have not upgraded to Mountain Lion yet, have 3 major apps (acrobatpro) and adobe image ready, and apple works that is not compatible, does anyone know how long snow leopard will be supported. Don't want to upgrade until I purchase new iMac next year.

Consider running your Adobe and AppleWorks software in Snow Leopard (with Rosetta) installed in Parallels in Lion or Mt. Lion:
[click on image to enlarge]
Full Snow Leopard installation instructions here:
http://forums.macrumors.com/showthread.php?t=1365439

CS5 Design Premium: Will it run faster in Snow Leopard than Lepoard?

I was wondering If CS5 PS will run more quickly in Snow Leopard than it does in Leopards? Is the difference noticeable?

Yes, it can run faster in Snow Leopard, especially in 64 bit.

Why does Lion run slower than Snow Leopard?

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