Mac book pro running slow

hi guys, recently my macbook pro has been running slow and i ve look at other discussions and tried them but not working ive run the diagnositics test.

any help will be much appreciated.

Hardware Information:

MacBook Pro (13-inch, Mid 2012)

MacBook Pro - model: MacBookPro9,2

1 2.9 GHz Intel Core i7 CPU: 2 cores

8 GB RAM

Video Information:

Intel HD Graphics 4000 - VRAM: 512 MB

System Software:

OS X 10.8.5 (12F45) - Uptime: 0 days 0:47:10

Disk Information:

TOSHIBA MK7559GSXF disk0 : (750.16 GB)

disk0s1 (disk0s1) <not mounted>: 209.7 MB

Macintosh HD (disk0s2) /: 749.3 GB (686.02 GB free)

Recovery HD (disk0s3) <not mounted>: 650 MB

MATSHITADVD-R UJ-8A8

USB Information:

Apple Inc. Apple Internal Keyboard / Trackpad

Apple Computer, Inc. IR Receiver

Apple Inc. BRCM20702 Hub

Apple Inc. Bluetooth USB Host Controller

Apple Inc. FaceTime HD Camera (Built-in)

FireWire Information:

Thunderbolt Information:

Apple Inc. thunderbolt_bus

Kernel Extensions:

com.symantec.kext.internetSecurity (5.3f6)

com.symantec.kext.pf (5.6f22)

com.symantec.kext.ips (3.9f13)

com.symantec.kext.filesecurity (2.6f32)

com.symantec.kext.fw (5.3f12)

com.symantec.kext.SymAPComm (12.6f28)

Problem System Launch Daemons:

Problem System Launch Agents:

Launch Daemons:

[loaded] com.adobe.fpsaud.plist

[loaded] com.microsoft.office.licensing.helper.plist

[loaded] com.symantec.deepsight-extractor.plist

[loaded] com.symantec.errorreporter-periodic.plist

[loaded] com.symantec.liveupdate.daemon.ondemand.plist

[loaded] com.symantec.liveupdate.daemon.plist

[not loaded] com.symantec.nav.migrateqtf.plist

[loaded] com.symantec.sharedsettings.plist

[loaded] com.symantec.symdaemon.plist

[loaded] com.wdc.WDDMservice.plist

[loaded] com.wdc.WDSmartWareServer.plist

Launch Agents:

[failed] com.symantec.errorreporter-periodicagent.plist

[loaded] com.symantec.nis.application.plist

[loaded] com.symantec.uiagent.application.plist

User Launch Agents:

[failed] com.apple.CSConfigDotMacCert-[redacted]@me.com-SharedServices.Agent.plist

[loaded] com.google.keystone.agent.plist

User Login Items:

None

3rd Party Preference Panes:

Flash Player

Internet Plug-ins:

Flash Player.plugin

FlashPlayer-10.6.plugin

JavaAppletPlugin.plugin

QuickTime Plugin.plugin

SharePointBrowserPlugin.plugin

Silverlight.plugin

User Internet Plug-ins:

Google Earth Web Plug-in.plugin

Bad Fonts:

None

Top Processes by CPU:

2% WindowServer

2% EtreCheck

1% WebProcess

1% App for Facebook

0% mds

0% fontd

0% fseventsd

0% mDNSResponder

0% imagent

Top Processes by Memory:

215 MB WebProcess

172 MB SymDaemon

98 MB mds

98 MB Safari

74 MB coresymbolicationd

57 MB App for Facebook

49 MB Finder

41 MB WindowServer

33 MB Dock

25 MB PluginProcess

Virtual Memory Statistics

4.78 GB Free RAM

1.31 GB Active RAM

554 MB Inactive RAM

1.37 GB Wired RAM

1.36 GB Page-ins

0 B Page-outs

thanks very much.