I am having the same issue. here is my diagnostic from Etrecheck. Please HELPPPPPP!!!
Problem description:
mid 2010 Macbook pro, has slowed down to unusable level since Yosemite Upgrade.
EtreCheck version: 2.0.11 (98)
Report generated November 7, 2014 at 1:56:24 PM EST
Hardware Information:ℹ️
MacBook Pro (13-inch, Mid 2010) (Verified)
MacBook Pro - model: MacBookPro7,1
1 2.4 GHz Intel Core 2 Duo CPU: 2-core
6 GB RAM Upgradeable
BANK 0/DIMM0
4 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
Video Information:ℹ️
NVIDIA GeForce 320M - VRAM: 256 MB
VGA Display 1600 x 1200 @ 60 Hz
System Software:ℹ️
OS X 10.10 (14A389) - Uptime: 2:59:38
Disk Information:ℹ️
ST1000LM014-1EJ164 disk0 : (1 TB)
S.M.A.R.T. Status: Verified
EFI (disk0s1) <not mounted> : 210 MB
Macintosh HD (disk0s2) / [Startup]: 999.35 GB (265.91 GB free)
Recovery HD (disk0s3) <not mounted> [Recovery]: 650 MB
ST2000LM003 HN-M201RAD disk1 : (2 TB)
S.M.A.R.T. Status: Verified
MNR (disk1s1) /Volumes/MNR : 2.00 TB (1.13 TB free)
USB Information:ℹ️
Apple Inc. Built-in iSight
DisplayLink Samsung SMD220SU
Apple Internal Memory Card Reader
PreSonus Audio AudioBox USB
Apple Inc. BRCM2046 Hub
Apple Inc. Bluetooth USB Host Controller
Apple Computer, Inc. IR Receiver
Apple Inc. Apple Internal Keyboard / Trackpad
Configuration files:ℹ️
/etc/hosts - Count: 27
Gatekeeper:ℹ️
Mac App Store and identified developers
Kernel Extensions:ℹ️
/Applications/Utilities/DiskWarrior.app
[not loaded] com.alsoft.Preview (4.4) Support
/Library/Extensions
[not loaded] com.caiaq.driver.NIUSBGuitarRigMobileDriver (2.6.0 - SDK 10.8) Support
[not loaded] com.caiaq.driver.NIUSBHardwareDriver (2.6.0 - SDK 10.8) Support
[not loaded] com.displaylink.dlusbncm (1.11.0 - SDK 10.9) Support
[loaded] com.displaylink.driver.DisplayLinkDriver (2.2 - SDK 10.9) Support
/System/Library/Extensions
[loaded] com.Cycling74.driver.Soundflower (1.5.1) Support
[not loaded] com.digidesign.iokit.DigiDal (8.0.3f1) Support
[not loaded] com.digidesign.iokit.DigiIO (8.0.3f1) Support
[not loaded] com.maudio.usb.fasttrack.driver (1.8) Support
[not loaded] com.novationmusic.driver.usb.audio (2.3) Support
[not loaded] com.numark.nc06.usb (1.6.9) Support
[not loaded] com.numark.ns6.usb (2.1.18 - SDK 10.7) Support
[not loaded] com.numark.ns7.usb (2.1.18 - SDK 10.7) Support
[not loaded] com.numark.v7.usb (2.1.18 - SDK 10.7) Support
[not loaded] com.paceap.kext.pacesupport.master (5.7.2) Support
[not loaded] com.ploytec.xonedx.usb (2.0.2) Support
[not loaded] com.presonus.driver.audiobox.vsl.KernelDriver (1.40 - SDK 10.6) Support
[not loaded] com.presonus.driver.audiobox.vsldsp.KernelDriver (1.40 - SDK 10.6) Support
[not loaded] com.seagate.driver.PowSecDriverCore (5.0.1) Support
/System/Library/Extensions/NumarkNS6Audio.kext/Contents/PlugIns
[not loaded] com.numark.ns6.usb_TIGER (2.1.18 - SDK 10.4) Support
/System/Library/Extensions/NumarkNS7Audio.kext/Contents/PlugIns
[not loaded] com.numark.ns7.usb_TIGER (2.1.18 - SDK 10.4) Support
/System/Library/Extensions/NumarkV7Audio.kext/Contents/PlugIns
[not loaded] com.numark.V7.usb_TIGER (2.1.18 - SDK 10.4) Support
/System/Library/Extensions/PACESupportFamily.kext/Contents/PlugIns
[not loaded] com.paceap.kext.pacesupport.leopard (5.7.2) Support
[not loaded] com.paceap.kext.pacesupport.panther (5.7.2) Support
[loaded] com.paceap.kext.pacesupport.snowleopard (5.7.2) Support
[not loaded] com.paceap.kext.pacesupport.tiger (5.7.2) Support
/System/Library/Extensions/Seagate Storage Driver.kext/Contents/PlugIns
[not loaded] com.seagate.driver.PowSecLeafDriver_10_4 (5.0.1) Support
[not loaded] com.seagate.driver.PowSecLeafDriver_10_5 (5.0.1) Support
[not loaded] com.seagate.driver.SeagateDriveIcons (5.0.1) Support
/System/Library/Extensions/XONE_DX.kext/Contents/PlugIns
[not loaded] com.ploytec.xonedx.usb_TIGER (2.0.2) Support
Startup Items:ℹ️
ChmodBPF: Path: /Library/StartupItems/ChmodBPF
DigidesignLoader: Path: /Library/StartupItems/DigidesignLoader
HWNetMgr: Path: /Library/StartupItems/HWNetMgr
HWPortDetect: Path: /Library/StartupItems/HWPortDetect
M-AudioFastTrack: Path: /Library/StartupItems/M-AudioFastTrack
PACESupport: Path: /Library/StartupItems/PACESupport
Startup items are obsolete and will not work in future versions of OS X
Problem System Launch Agents:ℹ️
[loaded] com.paragon.NTFS.auth.plist Support
Launch Agents:ℹ️
[not loaded] com.adobe.AAM.Updater-1.0.plist Support
[not loaded] com.displaylink.useragent-prelogin.plist Support
[running] com.displaylink.useragent.plist Support
[running] com.seagate.SeagateStorageGauge.plist Support
Launch Daemons:ℹ️
[loaded] com.adobe.fpsaud.plist Support
[running] com.bombich.ccchelper.plist Support
[loaded] com.ciscosystems.ciscoconnect.daemon.plist Support
[running] com.displaylink.displaylinkmanager.plist Support
[running] com.JavaW.plist Support
[loaded] com.microsoft.office.licensing.helper.plist Support
[running] hdjsd.plist Support
[loaded] PACESupport.plist Support
User Launch Agents:ℹ️
[loaded] com.adobe.AAM.Updater-1.0.plist Support
[loaded] com.adobe.ARM.[...].plist Support
[loaded] com.google.keystone.agent.plist Support
[invalid?] net.jonstovell.keepMNRSpinning.plist Support
[invalid?] net.jonstovell.keepSUPPORTSpinning.plist Support
User Login Items:ℹ️
Canon IJ Network Scanner Selector2 ApplicationHidden (/Library/Printers/Canon/IJScanner/Utilities/Canon IJ Network Scanner Selector2.app)
iTunesHelper ApplicationHidden (/Applications/iTunes.app/Contents/MacOS/iTunesHelper.app)
Dropbox Application (/Applications/Dropbox.app)
VMware Fusion Start Menu UNKNOWN (missing value)
NIHardwareAgent ApplicationHidden (/Library/Application Support/Native Instruments/Hardware/NIHardwareAgent.app)
RealPlayer Downloader Agent Application (/Users/[redacted]/Library/Application Support/RealNetworks/RealPlayer Downloader Agent.app)
Internet Plug-ins:ℹ️
Default Browser: Version: 600 - SDK 10.10
RealPlayer Plugin: Version: (null) Support
AdobeAAMDetect: Version: AdobeAAMDetect 1.0.0.0 - SDK 10.6 Support
FlashPlayer-10.6: Version: 15.0.0.189 - SDK 10.6 Support
AdobePDFViewerNPAPI: Version: 10.1.10 Support
Silverlight: Version: 5.0.61118.0 - SDK 10.6 Support
Flash Player: Version: 15.0.0.189 - SDK 10.6 Support
QuickTime Plugin: Version: 7.7.3
iPhotoPhotocast: Version: 7.0
SharePointBrowserPlugin: Version: 14.4.5 - SDK 10.6 Support
AdobePDFViewer: Version: 10.1.10 Support
EPPEX Plugin: Version: 3.0.5.0 Support
JavaAppletPlugin: Version: 15.0.0 - SDK 10.10 Check version
Safari Extensions:ℹ️
Omnibar
Ultimate
iTube Studio
iSkyDeluxe
Audio Plug-ins:ℹ️
NumarkNS6AudioHAL: Version: (null) - SDK 10.7 Support
NumarkNS7AudioHAL: Version: (null) - SDK 10.7 Support
NumarkV7AudioHAL: Version: (null) - SDK 10.7 Support
XONE_DX: Version: (null) Support
NumarkNC06AudioHAL: Version: (null) Support
DVCPROHDAudio: Version: 1.3.2
3rd Party Preference Panes:ℹ️
Flash Player Support
M-AudioFastTrack Support
MacFUSE Support
Native Instruments USB Audio Support
Paragon NTFS for Mac ® OS X Support
Time Machine:ℹ️
Skip System Files: NO
Auto backup: YES
Volumes being backed up:
Macintosh HD: Disk size: 999.35 GB Disk used: 733.44 GB
Destinations:
backup [Local]
Total size: 2.00 TB
Total number of backups: 2
Oldest backup: 2013-05-16 02:04:47 +0000
Last backup: 2013-05-16 02:04:47 +0000
Size of backup disk: Too small
Backup size 2.00 TB < (Disk used 733.44 GB X 3)
Top Processes by CPU:ℹ️
14% WindowServer
10% mds
7% DisplayLinkManager
3% DisplayLinkUserAgent
3% distnoted
Top Processes by Memory:ℹ️
303 MB mds_stores
303 MB com.apple.WebKit.WebContent
200 MB WindowServer
135 MB Finder
103 MB Safari
Virtual Memory Information:ℹ️
1.83 GB Free RAM
2.93 GB Active RAM
584 MB Inactive RAM
829 MB Wired RAM
1.70 GB Page-ins
0 B Page-outs