My Macbook Pro is going extremely slow. Please help

Hi. My macbook pro that I purchased in 2010 has been running extremley slow the past few months. Especially when I run anything like spotify or netflix. My computer gets extremley hot to the point I can probably flip it over and cook eggs on it!! The fan is extremley loud! It is extremley slow compared to how it was when i first purchased this bad boy. It has even crashed a few times this week and when I turn it back on it gives me a message saying it crashed because of a system error or something like that. I ran an etreCheck but I dont know exactly how to understand it. Can anyone help me out?

EtreCheck version: 1.9.11 (43) - report generated June 2, 2014 at 10:51:49 PM PDT

Hardware Information:

MacBook Pro (13-inch, Mid 2010)

MacBook Pro - model: MacBookPro7,1

1 2.4 GHz Intel Core 2 Duo CPU: 2 cores

4 GB RAM

Video Information:

NVIDIA GeForce 320M - VRAM: 256 MB

System Software:

OS X 10.9.2 (13C64) - Uptime: 6 days 0:54:11

Disk Information:

TOSHIBA MK2555GSXF disk0 : (250.06 GB)

EFI (disk0s1) <not mounted>: 209.7 MB

Macintosh HD (disk0s2) / [Startup]: 249.2 GB (42.18 GB free)

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

MATSHITADVD-R UJ-898

USB Information:

Apple Inc. Built-in iSight

Apple Internal Memory Card Reader

Apple Inc. BRCM2046 Hub

Apple Inc. Bluetooth USB Host Controller

Apple Computer, Inc. IR Receiver

Apple Inc. Apple Internal Keyboard / Trackpad

Gatekeeper:

Mac App Store and identified developers

Kernel Extensions:

[not loaded] com.cisco.cscotun (1.0) Support

[not loaded] com.symantec.kext.SymAPComm (11.1.2f17) Support

[kext loaded] com.symantec.kext.internetSecurity (1.3.2f5) Support

[kext loaded] com.symantec.kext.ips (3.1f10) Support

[kext loaded] org.virtualbox.kext.VBoxDrv (4.1.2) Support

[not loaded] org.virtualbox.kext.VBoxNetAdp (4.1.2) Support

[not loaded] org.virtualbox.kext.VBoxNetFlt (4.1.2) Support

[kext loaded] org.virtualbox.kext.VBoxUSB (4.1.2) Support

Startup Items:

VirtualBox: Path: /Library/StartupItems/VirtualBox

Problem System Launch Daemons:

[failed] com.apple.wdhelper.plist

Launch Daemons:

[loaded] com.adobe.fpsaud.plist Support

[loaded] com.adobe.SwitchBoard.plist Support

[running] com.cisco.anyconnect.vpnagentd.plist Support

[loaded] com.google.keystone.daemon.plist Support

[loaded] com.symantec.avscandaemon.plist Support

[running] com.symantec.diskMountNotify.plist Support

[loaded] com.symantec.MissedTasks.plist Support

[loaded] com.symantec.navapd.plist Support

[loaded] com.symantec.navapdaemonsl.plist Support

[loaded] com.symantec.Sched501-1.plist Support

[running] com.symantec.sharedsettings.plist Support

[running] com.symantec.symdaemon.plist Support

[running] com.symantec.symSchedDaemon.plist Support

Launch Agents:

[not loaded] com.adobe.AAM.Updater-1.0.plist Support

[loaded] com.cisco.anyconnect.gui.plist Support

[loaded] com.divx.dms.agent.plist Support

[loaded] com.divx.update.agent.plist Support

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

[running] com.symantec.uiagent.application.plist Support

User Launch Agents:

[loaded] com.adobe.AAM.Updater-1.0.plist Support

[loaded] com.facebook.videochat.[redacted].plist Support

[running] com.spotify.webhelper.plist Support

[not loaded] jp.co.canon.Inkjet_Extended_Survey_Agent.plist Support

[not loaded] org.virtualbox.vboxwebsrv.plist Support

User Login Items:

iTunesHelper

Canon IJ Network Scanner Selector2

Spotify

SymSecondaryLaunch

Internet Plug-ins:

o1dbrowserplugin: Version: 5.4.1.18709 Support

OVSHelper: Version: 1.1 Support

Default Browser: Version: 537 - SDK 10.9

Google Earth Web Plug-in: Version: 7.1 Support

Silverlight: Version: 5.1.30317.0 - SDK 10.6 Support

FlashPlayer-10.6: Version: 13.0.0.214 - SDK 10.6 Support

DivX Web Player: Version: 3.0.1.5 - SDK 10.5 Support

Flash Player: Version: 13.0.0.214 - SDK 10.6 Support

QuickTime Plugin: Version: 7.7.3

googletalkbrowserplugin: Version: 5.4.1.18709 Support

iPhotoPhotocast: Version: 7.0

EPPEX Plugin: Version: 3.0.5.0 Support

JavaAppletPlugin: Version: 14.9.0 - SDK 10.7 Check version

Safari Extensions:

AdBlock: Version: 2.6.35

Audio Plug-ins:

BluetoothAudioPlugIn: Version: 1.0 - SDK 10.9

AirPlay: Version: 2.0 - SDK 10.9

AppleAVBAudio: Version: 203.2 - SDK 10.9

iSightAudio: Version: 7.7.3 - SDK 10.9

iTunes Plug-ins:

Quartz Composer Visualizer: Version: 1.4 - SDK 10.9

User iTunes Plug-ins:

AudioScrobbler: Version: 4.0.0 - SDK 10.7 Support

3rd Party Preference Panes:

Flash Player Support

Norton\nQuickMenu Support

Perian Support

Time Machine:

Time Machine not configured!

Top Processes by CPU:

81% Spotify

32% Safari

17% com.apple.WebKit.Networking

9% WindowServer

0% hidd

Top Processes by Memory:

201 MB Safari

134 MB com.apple.WebKit.WebContent

98 MB Finder

53 MB com.apple.WebKit.Networking

49 MB Google Chrome

Virtual Memory Information:

116 MB Free RAM

1.06 GB Active RAM

1011 MB Inactive RAM

623 MB Wired RAM

22.61 GB Page-ins

483 MB Page-outs