MBP hos slowed down and some apps crash often

Problem description:
MBP slow and some app crash often.  Ran Etrecheck.  Here is the report.  How do I fix this?
EtreCheck version: 2.1.6 (109)
Report generated January 26, 2015 at 9:48:17 AM CST
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 (13-inch, Mid 2009) (Technical Specifications)
  MacBook Pro - model: MacBookPro5,5
  1 2.53 GHz Intel Core 2 Duo CPU: 2-core
  4 GB RAM Upgradeable
  BANK 0/DIMM0
  2 GB DDR3 1067 MHz ok
  BANK 1/DIMM0
  2 GB DDR3 1067 MHz ok
  Bluetooth: Old - Handoff/Airdrop2 not supported
  Wireless:  en1: 802.11 a/b/g/n
  Battery Health: Check Battery - Cycle count 897
Video Information: ℹ️
  NVIDIA GeForce 9400M - VRAM: 256 MB
  Color LCD 1280 x 800
System Software: ℹ️
  OS X 10.10.1 (14B25) - Time since boot: 4 days 15:49:22
Disk Information: ℹ️
  Hitachi HTS545025B9SA02 disk0 : (250.06 GB)
  EFI (disk0s1) <not mounted> : 210 MB
  Macintosh HD (disk0s2) / : 249.20 GB (95.18 GB free)
  Recovery HD (disk0s3) <not mounted>  [Recovery]: 650 MB
  HL-DT-ST DVDRW  GS23N 
USB Information: ℹ️
  Apple Inc. Built-in iSight
  Apple Internal Memory Card Reader
  Apple Inc. Apple Internal Keyboard / Trackpad
  Apple Computer, Inc. IR Receiver
  Apple Inc. BRCM2046 Hub
  Apple Inc. Bluetooth USB Host Controller
Gatekeeper: ℹ️
  Mac App Store and identified developers
Kernel Extensions: ℹ️
  /System/Library/Extensions
  [not loaded] com.devguru.driver.SamsungComposite (1.4.14 - SDK 10.6) [Support]
  /System/Library/Extensions/ssuddrv.kext/Contents/PlugIns
  [not loaded] com.devguru.driver.SamsungACMControl (1.4.14 - SDK 10.6) [Support]
  [not loaded] com.devguru.driver.SamsungACMData (1.4.14 - SDK 10.6) [Support]
  [not loaded] com.devguru.driver.SamsungMTP (1.4.14 - SDK 10.5) [Support]
  [not loaded] com.devguru.driver.SamsungSerial (1.4.14 - SDK 10.6) [Support]
Problem System Launch Agents: ℹ️
  [killed] com.apple.accountsd.plist
  [killed] com.apple.AirPlayUIAgent.plist
  [killed] com.apple.bird.plist
  [killed] com.apple.CallHistoryPluginHelper.plist
  [killed] com.apple.CallHistorySyncHelper.plist
  [killed] com.apple.cloudd.plist
  [killed] com.apple.cmfsyncagent.plist
  [killed] com.apple.coreservices.appleid.authentication.plist
  [killed] com.apple.coreservices.uiagent.plist
  [killed] com.apple.EscrowSecurityAlert.plist
  [killed] com.apple.iconservices.iconservicesagent.plist
  [killed] com.apple.nsurlsessiond.plist
  [killed] com.apple.pluginkit.pkd.plist
  [killed] com.apple.printtool.agent.plist
  [killed] com.apple.rcd.plist
  [killed] com.apple.recentsd.plist
  [killed] com.apple.sbd.plist
  [killed] com.apple.scopedbookmarkagent.xpc.plist
  [killed] com.apple.secd.plist
  [killed] com.apple.security.cloudkeychainproxy.plist
  [killed] com.apple.spindump_agent.plist
  [killed] com.apple.syncdefaultsd.plist
  [killed] com.apple.telephonyutilities.callservicesd.plist
  23 processes killed due to memory pressure
Problem System Launch Daemons: ℹ️
  [killed] com.apple.AssetCacheLocatorService.plist
  [killed] com.apple.awdd.plist
  [killed] com.apple.cache_delete.plist
  [killed] com.apple.coresymbolicationd.plist
  [killed] com.apple.ctkd.plist
  [killed] com.apple.diagnosticd.plist
  [killed] com.apple.emond.aslmanager.plist
  [killed] com.apple.GSSCred.plist
  [killed] com.apple.icloud.findmydeviced.plist
  [killed] com.apple.iconservices.iconservicesagent.plist
  [killed] com.apple.iconservices.iconservicesd.plist
  [killed] com.apple.ifdreader.plist
  [killed] com.apple.installd.plist
  [killed] com.apple.MobileFileIntegrity.plist
  [killed] com.apple.nehelper.plist
  [killed] com.apple.nsurlsessiond.plist
  [killed] com.apple.periodic-daily.plist
  [killed] com.apple.periodic-weekly.plist
  [killed] com.apple.sandboxd.plist
  [killed] com.apple.softwareupdate_download_service.plist
  [killed] com.apple.softwareupdated.plist
  [killed] com.apple.spindump.plist
  [killed] com.apple.systemstatsd.plist
  [killed] com.apple.tccd.system.plist
  [killed] com.apple.wdhelper.plist
  [killed] org.cups.cupsd.plist
  26 processes killed due to memory pressure
Launch Agents: ℹ️
  [loaded] com.google.keystone.agent.plist [Support]
  [loaded] com.hp.help.tocgenerator.plist [Support]
  [running] com.motive.userAgent.plist [Support]
  [invalid?] com.oracle.java.Java-Updater.plist [Support]
Launch Daemons: ℹ️
  [loaded] com.adobe.fpsaud.plist [Support]
  [loaded] com.google.keystone.daemon.plist [Support]
  [running] com.motive.systemDaemon.plist [Support]
  [invalid?] com.oracle.java.Helper-Tool.plist [Support]
  [failed] com.vmware.launchd.vmware.plist [Support]
User Login Items: ℹ️
  iTunesHelper UNKNOWN  (missing value)
  Dropbox Application  (/Applications/Dropbox.app)
  SpeechSynthesisServer Application  (/System/Library/Frameworks/ApplicationServices.framework/Versions/A/Frameworks /SpeechSynthesis.framework/Versions/A/SpeechSynthesisServer.app)
  fuspredownloader Application Hidden (/Users/[redacted]/Library/Application Support/.FUS/fuspredownloader.app)
  HP Product Research Application  (/Library/Application Support/Hewlett-Packard/Customer Participation/HP Product Research.app)
Internet Plug-ins: ℹ️
  o1dbrowserplugin: Version: 5.38.6.0 - SDK 10.8 [Support]
  Unity Web Player: Version: UnityPlayer version 3.5.6f4 - SDK 10.6 [Support]
  Default Browser: Version: 600 - SDK 10.10
  OfficeLiveBrowserPlugin: Version: 12.3.6 [Support]
  npMotive: Version: 1.0.0 - SDK 10.7 [Support]
  Silverlight: Version: 5.1.10411.0 - SDK 10.6 [Support]
  FlashPlayer-10.6: Version: 16.0.0.296 - SDK 10.6 [Support]
  LogMeIn: Version: 1.0.961 - SDK 10.7 [Support]
  Flash Player: Version: 16.0.0.296 - SDK 10.6 Mismatch! Adobe recommends 16.0.0.287
  AmazonMP3DownloaderPlugin: Version: AmazonMP3DownloaderPlugin 1.0.16 [Support]
  LogMeInSafari32: Version: 1.0.961 - SDK 10.7 [Support]
  googletalkbrowserplugin: Version: 5.38.6.0 - SDK 10.8 [Support]
  AdobePDFViewer: Version: 8.1.0 [Support]
  CouponPrinter-FireFox_v2: Version: 1.1.10 - SDK 10.5 [Support]
  iPhotoPhotocast: Version: 7.0
  QuickTime Plugin: Version: 7.7.3
User internet Plug-ins: ℹ️
  ContentManager: Version: Unknown [Support]
  RocketEngine: Version: Unknown [Support]
  UploadManager: Version: Unknown [Support]
3rd Party Preference Panes: ℹ️
  Flash Player  [Support]
  MacFUSE  [Support]
Time Machine: ℹ️
  Skip System Files: NO
  Auto backup: YES
  Volumes being backed up:
  Macintosh HD: Disk size: 249.20 GB Disk used: 154.01 GB
  Destinations:
  Data [Network]
  Total size: 2.00 TB
  Total number of backups: 68
  Oldest backup: 2013-11-11 18:18:23 +0000
  Last backup: 2015-01-24 01:33:43 +0000
  Size of backup disk: Excellent
  Backup size 2.00 TB > (Disk size 249.20 GB X 3)
Top Processes by CPU: ℹ️
      8% WindowServer
      2% iTunes
      0% AppleSpell
      0% awacsd
      0% coreduetd
Top Processes by Memory: ℹ️
  331 MB iBank
  112 MB Finder
  86 MB iTunes
  82 MB Safari
  77 MB Mail
Virtual Memory Information: ℹ️
  39 MB Free RAM
  1.03 GB Active RAM
  988 MB Inactive RAM
  655 MB Wired RAM
  28.65 GB Page-ins
  2.21 GB Page-outs
Diagnostics Information: ℹ️
  Jan 25, 2015, 06:44:54 PM /Library/Logs/DiagnosticReports/iTunes_2015-01-25-184454_[redacted].cpu_resourc e.diag [Details]
  Jan 25, 2015, 03:40:11 PM /Library/Logs/DiagnosticReports/iTunes_2015-01-25-154011_[redacted].hang
  Jan 25, 2015, 01:28:06 PM /Library/Logs/DiagnosticReports/pdftopdf_2015-01-25-132806_[redacted].crash
  Jan 25, 2015, 11:48:24 AM /Library/Logs/DiagnosticReports/iTunes_2015-01-25-114824_[redacted].cpu_resourc e.diag [Details]

The report shows you don't have enough RAM required to run all of the apps you run at the same time. Yosemite takes way more RAM than what OS X used to take.
To solve the problem do either one of these:
restart your mac from time to time (every night for ex).
Use less apps at the same time.
upgrade to 8GB of RAM if your Mac allows it

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              MacBook Pro - model: MacBookPro6,2
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              Apple Inc. BRCM2070 Hub
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              Apple Inc. Apple Internal Keyboard / Trackpad
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    Kernel Extensions:
              [kext loaded] com.Perfect.Driver.SystemAudioRecorder (1.0.0 - SDK 10.6) Support
              [not loaded] com.cisco.nke.ipsec (1.0.0) Support
              [kext loaded] com.logmein.driver.LogMeInSoundDriver (1.0.3 - SDK 10.5) Support
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              [loaded] com.adobe.AdobeCreativeCloud.plist Support
              [loaded] com.cisco.anyconnect.gui.plist Support
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