Mac Book Pro ist langsam trotz verdopplung des Speichers

EtreCheck version: 2.6.1 (221)
Report generated 26.10.15 12:40
Runtime 1:18
Download EtreCheck from hxxp://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: (What does this mean?)
    MacBook Pro (17-inch, Mid 2010) 
    [Click for Technical Specifications]
    [Click for User Guide]
    MacBook Pro - model: MacBookPro6,1
    1 2.8 GHz Intel Core i7 CPU: 2-core
    8 GB RAM Upgradeable
    [Click for upgrade instructions]
        BANK 0/DIMM0
            4 GB DDR3 1067 MHz ok
        BANK 1/DIMM0
            4 GB DDR3 1067 MHz ok
    Bluetooth: Old - Handoff/Airdrop2 not supported
    Wireless:  en1: 802.11 a/b/g/n
    Battery: Health = Normal - Cycle count = 317 - SN = 9G0470496DN6A

Video Information: (What does this mean?)
    NVIDIA GeForce GT 330M - VRAM: 512 MB
        Color LCD 1920 x 1200
    Intel HD Graphics - VRAM: 288 MB

System Software: (What does this mean?)
    OS X Mavericks 10.9.5 (13F1112) - Time since boot: about 2 hours

Disk Information: (What does this mean?)
    TOSHIBA MK5055GSXF disk0 : (500,11 GB) (Rotational)
        EFI (disk0s1) <not mounted> : 210 MB 
        MAC HD (disk0s2) / : 499.25 GB (395.06 GB free)
        Recovery HD (disk0s3) <not mounted>  [Recovery]: 650 MB 

    HL-DT-ST DVDRW  GS23N   ()

USB Information: (What does this mean?)
    SanDisk Cruzer Fit 16,01 GB
        NO NAME (disk2s1) /Volumes/NO NAME 1 : 16.01 GB (8.12 GB free)
    Apple Inc. BRCM2070 Hub 
        Apple Inc. Bluetooth USB Host Controller 
    Apple Inc. Apple Internal Keyboard / Trackpad 
    SanDisk Cruzer Fit 8 GB
        NO NAME (disk1s1) /Volumes/NO NAME : 8.00 GB (7.98 GB free)
    Apple Inc. Built-in iSight 
    Apple Computer, Inc. IR Receiver 

Gatekeeper: (What does this mean?)
    Mac App Store and identified developers

System Launch Agents: (What does this mean?)
    [loaded]    com.apple.RemoteDesktop.plist - Invalid signature!
    [loaded]    com.apple.screensharing.MessagesAgent.plist - Invalid signature!

Launch Daemons: (What does this mean?)
    [loaded]    com.adobe.fpsaud.plist [Click for support]

User Login Items: (What does this mean?)
    smcFanControl    Programm  (~/Desktop/smcFanControl.app)

Other Apps: (What does this mean?)
    [running]    J8RPQ294UB.com.skitch.SkitchHelper
    [running]    com.eidac.smcFanControl2.59520
    [running]    com.etresoft.EtreCheck.74832

Internet Plug-ins: (What does this mean?)
    FlashPlayer-10.6: Version: 19.0.0.226 - SDK 10.6 [Click for support]
    Flash Player: Version: 19.0.0.226 - SDK 10.6 [Click for support]
    QuickTime Plugin: Version: 7.7.3
    JavaAppletPlugin: Version: 14.9.0 - SDK 10.7 Check version
    Default Browser: Version: 537 - SDK 10.9

Safari Extensions: (What does this mean?)
    AdBlock
    DuckDuckGo
    Adblock Plus
    Incognito
    AdBlock Lite
    Firebug Lite for Safari

3rd Party Preference Panes: (What does this mean?)
    Flash Player  [Click for support]

Time Machine: (What does this mean?)
    Time Machine not configured!

Top Processes by CPU: (What does this mean?)
        49%    firefox
         8%    WindowServer
         3%    fontd
         0%    aosnotifyd

Top Processes by Memory: (What does this mean?)
    819 MB    firefox
    648 MB    kernel_task
    426 MB    iTunes
    410 MB    Safari
    123 MB    com.apple.IconServicesAgent

Virtual Memory Information: (What does this mean?)
    3.47 GB    Free RAM 
    4.53 GB    Used RAM (1.29 GB Cached)
    0 B    Swap Used 

Diagnostics Information: (What does this mean?)
    Oct 26, 2015, 09:54:39 AM    Self test - passed