Having slow macbook Pro issues especially at startup, I will post my Etresoft report

Question

My Macbook is running really slow lately and the pinwheel is my new friend. Word and I tunes have a hard time and startup is especially slow. I have Carbonite installed but pause it when I am using the computer. Here is my Etresoft report. Thanks for any help!!
EtreCheck version: 2.2 (132)
Report generated 4/28/15, 10:11 AM
Download EtreCheck from http://etresoft.com/etrecheck
Click the [Click for support] links for help with non-Apple products.
Click the [Click for details] links for more information about that line.
Hardware Information: ℹ️
    MacBook Pro (15-inch, Early 2011) (Technical Specifications)
    MacBook Pro - model: MacBookPro8,2
    1 2.3 GHz Intel Core i7 CPU: 4-core
    4 GB RAM Upgradeable
        BANK 0/DIMM0
            2 GB DDR3 1333 MHz ok
        BANK 1/DIMM0
            2 GB DDR3 1333 MHz ok
    Bluetooth: Old - Handoff/Airdrop2 not supported
    Wireless:  en1: 802.11 a/b/g/n
    Battery: Health = Normal - Cycle count = 248 - SN = D861292035XDGDLA2
Video Information: ℹ️
    Intel HD Graphics 3000 - VRAM: 384 MB
        Color LCD 1680 x 1050
    AMD Radeon HD 6750M - VRAM: 1024 MB
System Software: ℹ️
    OS X 10.10.2 (14C1510) - Time since boot: 21:24:12
Disk Information: ℹ️
    TOSHIBA MK7559GSXF disk0 : (750.16 GB)
        EFI (disk0s1) <not mounted> : 210 MB
        Recovery HD (disk0s3) <not mounted>  [Recovery]: 650 MB
        Macintosh HD (disk1) / : 748.93 GB (377.10 GB free)
            Core Storage: disk0s2 749.30 GB Online
    HL-DT-ST DVDRW  GS31N 
USB Information: ℹ️
    Apple Inc. FaceTime HD Camera (Built-in)
    Apple Inc. BRCM2070 Hub
        Apple Inc. Bluetooth USB Host Controller
    Apple Inc. Apple Internal Keyboard / Trackpad
    Apple Computer, Inc. IR Receiver
Thunderbolt Information: ℹ️
    Apple Inc. thunderbolt_bus
Gatekeeper: ℹ️
    Mac App Store and identified developers
Kernel Extensions: ℹ️
        /Library/Extensions
    [loaded]    com.sophos.kext.sav (9.2.50 - SDK 10.8) [Click for support]
    [loaded]    com.sophos.nke.swi (9.2.50 - SDK 10.8) [Click for support]
        /Library/StartupItems/SymAutoProtect
    [not loaded]    com.Symantec.kext.SAVAPComm (11.0.6) [Click for support]
Startup Items: ℹ️
    NortonMissedTasks: Path: /Library/StartupItems/NortonMissedTasks
    SMC: Path: /Library/StartupItems/SMC
    SymAutoProtect: Path: /Library/StartupItems/SymAutoProtect
    SymProtector: Path: /Library/StartupItems/SymProtector
    Startup items are obsolete in OS X Yosemite
Launch Agents: ℹ️
    [not loaded]    com.adobe.AAM.Updater-1.0.plist [Click for support]
    [loaded]    com.carbonite.launchd.carbonitealerts.plist [Click for support]
    [running]    com.carbonite.launchd.carbonitestatus.plist [Click for support]
    [loaded]    com.oracle.java.Java-Updater.plist [Click for support]
    [running]    com.sophos.uiserver.plist [Click for support]
    [running]    Safe.Connect.client.plist [Click for support]
Launch Daemons: ℹ️
    [loaded]    com.adobe.fpsaud.plist [Click for support]
    [loaded]    com.adobe.SwitchBoard.plist [Click for support]
    [running]    com.carbonite.launchd.carbonitedaemon.plist [Click for support]
    [not loaded]    com.gopro.stereomodestatus.plist [Click for support]
    [loaded]    com.microsoft.office.licensing.helper.plist [Click for support]
    [loaded]    com.oracle.java.Helper-Tool.plist [Click for support]
    [loaded]    com.oracle.java.JavaUpdateHelper.plist [Click for support]
    [running]    com.sophos.common.servicemanager.plist [Click for support]
    [running]    Safe.Connect.plist [Click for support]
User Launch Agents: ℹ️
    [loaded]    com.adobe.AAM.Updater-1.0.plist [Click for support]
    [loaded]    com.adobe.ARM.[...].plist [Click for support]
    [loaded]    com.google.keystone.agent.plist [Click for support]
User Login Items: ℹ️
    iTunesHelper    UNKNOWN  (missing value)
    AdobeResourceSynchronizer    Application Hidden (/Applications/Adobe Reader.app/Contents/Support/AdobeResourceSynchronizer.app)
Internet Plug-ins: ℹ️
    AdobeAAMDetect: Version: AdobeAAMDetect 1.0.0.0 - SDK 10.6 [Click for support]
    FlashPlayer-10.6: Version: 17.0.0.169 - SDK 10.6 [Click for support]
    Default Browser: Version: 600 - SDK 10.10
    AdobePDFViewerNPAPI: Version: 10.1.13 [Click for support]
    AdobePDFViewer: Version: 10.1.13 [Click for support]
    Flash Player: Version: 17.0.0.169 - SDK 10.6 [Click for support]
    JavaAppletPlugin: Version: Java 7 Update 60 Check version
    QuickTime Plugin: Version: 7.7.3
    SharePointBrowserPlugin: Version: 14.4.8 - SDK 10.6 [Click for support]
    Silverlight: Version: 5.1.10411.0 - SDK 10.6 [Click for support]
    iPhotoPhotocast: Version: 7.0
User internet Plug-ins: ℹ️
    Picasa: Version: 1.0 [Click for support]
3rd Party Preference Panes: ℹ️
    Carbonite  [Click for support]
    Flash Player  [Click for support]
    GoPro  [Click for support]
    Java  [Click for support]
    SymAutoProtect
Time Machine: ℹ️
    Time Machine not configured!
Top Processes by CPU: ℹ️
         5%    WindowServer
         1%    fontd
         0%    com.apple.WebKit.WebContent(3)
         0%    SophosSXLD
         0%    askpermissiond
Top Processes by Memory: ℹ️
    449 MB    kernel_task
    274 MB    com.apple.WebKit.WebContent(3)
    254 MB    installd
    180 MB    mdworker(13)
    135 MB    Safari
Virtual Memory Information: ℹ️
    30 MB    Free RAM
    3.96 GB    Used RAM
    47 MB    Swap Used
Diagnostics Information: ℹ️
    Apr 27, 2015, 12:44:18 PM    Self test - passed

Answer 1

When you see a beachball cursor or the slowness is especially bad, note the exact time: hour, minute, second.  
These instructions must be carried out as an administrator. If you have only one user account, you are the administrator.
Launch the Console application in any of the following ways:
☞ Enter the first few letters of its name into a Spotlight search. Select it in the results (it should be at the top.)
☞ In the Finder, select Go ▹ Utilities from the menu bar, or press the key combination shift-command-U. The application is in the folder that opens.
☞ Open LaunchPad and start typing the name.
The title of the Console window should be All Messages. If it isn't, select
          SYSTEM LOG QUERIES ▹ All Messages
from the log list on the left. If you don't see that list, select
          View ▹ Show Log List
from the menu bar at the top of the screen.
Each message in the log begins with the date and time when it was entered. Scroll back to the time you noted above.
Select the messages entered from then until the end of the episode, or until they start to repeat, whichever comes first.
Copy the messages to the Clipboard by pressing the key combination command-C. Paste into a reply to this message by pressing command-V.
The log contains a vast amount of information, almost all of it useless for solving any particular problem. When posting a log extract, be selective. A few dozen lines are almost always more than enough.
Please don't indiscriminately dump thousands of lines from the log into this discussion.
Please don't post screenshots of log messages—post the text.
Some private information, such as your name, may appear in the log. Anonymize before posting.
When you post the log extract, you might see an error message on the web page: "You have included content in your post that is not permitted," or "The message contains invalid characters." That's a bug in the forum software. Please post the text on Pastebin, then post a link here to the page you created.