Slow MBP after Yosemite install and other concerns

Question

Hi
There are a few discussions on this topic, they did not help due to the fact that I have no clue what to do or if I even have a problem.
The problem:
My MBP is slower after I installed Yosemite, sometimes the wheel of death pops up and freezes what I am busy with in Safari. Apps take longer to open than usual.
I have added EtreCheck results from this morning.
Please give advice on:
How to improve the speed.
Whether there is there something in the results that I should be concerned about.
Hardware that should be updated.
Should I get an app to delete or prevent unnecessary files (from apps?) from being saved without my knowledge.
Thanks
EtreCheck version: 2.1.6 (109)
Report generated 26 January 2015 at 9:16:11 AM SAST
Download EtreCheck from http://etresoft.com/etrecheck
Click the [Support] links for help with non-Apple products.
Click the [Details] links for more information about that line.
Click the [Adware] links for help removing adware.
Hardware Information: ℹ️
  MacBook Pro Intel Core i7, 15" (Mid 2012)
  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
  Battery Health: Normal - Cycle count 153
Video Information: ℹ️
  Intel HD Graphics 4000
  Color LCD 1280 x 800
System Software: ℹ️
  OS X 10.10.1 (14B25) - Time since boot: 0:51:27
Disk Information: ℹ️
  TOSHIBA MK5065GSXF disk0 : (500,11 GB)
  EFI (disk0s1) <not mounted> : 210 MB
  Recovery HD (disk0s3) <not mounted>  [Recovery]: 650 MB
  Macintosh HD (disk1) / : 498.88 GB (394.47 GB free)
  Core Storage: disk0s2 499.25 GB Online
  HL-DT-ST DVDRW  GS31N 
USB Information: ℹ️
  Apple Computer, Inc. IR Receiver
  Apple Inc. Apple Internal Keyboard / Trackpad
  Apple Inc. BRCM20702 Hub
  Apple Inc. Bluetooth USB Host Controller
  Apple Inc. FaceTime HD Camera (Built-in)
Thunderbolt Information: ℹ️
  Apple Inc. thunderbolt_bus
Gatekeeper: ℹ️
  Mac App Store and identified developers
Launch Daemons: ℹ️
  [loaded] com.adobe.fpsaud.plist [Support]
User Launch Agents: ℹ️
  [loaded] com.google.keystone.agent.plist [Support]
User Login Items: ℹ️
  iTunesHelper Application  (/Applications/iTunes.app/Contents/MacOS/iTunesHelper.app)
Internet Plug-ins: ℹ️
  FlashPlayer-10.6: Version: 16.0.0.287 - SDK 10.6 [Support]
  Flash Player: Version: 16.0.0.287 - SDK 10.6 [Support]
  QuickTime Plugin: Version: 7.7.3
  Default Browser: Version: 600 - SDK 10.10
3rd Party Preference Panes: ℹ️
  Flash Player  [Support]
Time Machine: ℹ️
  Skip System Files: NO
  Mobile backups: ON
  Auto backup: YES
  Volumes being backed up:
  Macintosh HD: Disk size: 498.88 GB Disk used: 104.41 GB
  Destinations:
  2TB Seagate [Local]
  Total size: 2.00 TB
  Total number of backups: 8
  Oldest backup: 2014-10-16 21:41:16 +0000
  Last backup: 2014-11-07 10:29:39 +0000
  Size of backup disk: Excellent
  Backup size 2.00 TB > (Disk size 498.88 GB X 3)
Top Processes by CPU: ℹ️
      5% WindowServer
      1% launchd
      0% fontd
      0% AppleSpell
      0% ps
Top Processes by Memory: ℹ️
  219 MB com.apple.WebKit.WebContent
  176 MB Numbers
  163 MB Finder
  146 MB mds_stores
  82 MB WindowServer
Virtual Memory Information: ℹ️
  204 MB Free RAM
  1.80 GB Active RAM
  1.62 GB Inactive RAM
  671 MB Wired RAM
  1.99 GB Page-ins
  532 KB Page-outs
Diagnostics Information: ℹ️
  Jan 26, 2015, 08:25:19 AM Self test - passed

Answer 1

Hi epwebb,
The good news is that you have a good MBP. It seems to be hugged by that google crapware that you have on your Mac. They spy on you, use the bandwidth that you pay for and hugging your Mac obviously at your cost.
Your Mac should be motoring. Look here and here to get the Mac to perform as it should
Have fun
Leo