Q: Why is WindowServer consuming 48% of my CPU?

After reading a few other posts I've decided to start off by attaching an EtreCheck report.  Little to no other activity is occuring while the WindowServer is at such a high CPU consumption.  Certainly acts sluggish trying to launch apps and switching between users can produce a gray screen of death, just goes to a gray screen, never recovers.  Seems really strange to me.  Any help is greatly appreciated.

Hardware Information:

          MacBook Pro (13-inch, Mid 2010)

          MacBook Pro - model: MacBookPro7,1

          1 2.4 GHz Intel Core 2 Duo CPU: 2 cores

          8 GB RAM

Video Information:

          NVIDIA GeForce 320M - VRAM: 256 MB

Audio Plug-ins:

          BluetoothAudioPlugIn: Version: 1.0

          AirPlay: Version: 1.9

          AppleAVBAudio: Version: 2.0.0

          iSightAudio: Version: 7.7.3

Startup Items:

          NMTCPSettingsTuning - Path: /System/Library/StartupItems/NMTCPSettingsTuning

System Software:

          OS X 10.9 (13A603) - Uptime: 14 days 12:28:56

Disk Information:

          WDC WD5000BPKT-00PK4T0 disk0 : (500.11 GB)

                    EFI (disk0s1) <not mounted>: 209.7 MB

                    Macintosh HD (disk0s2) /: 499.25 GB (155.32 GB free)

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

          MATSHITADVD-R   UJ-898 

USB Information:

          Apple Inc. Built-in iSight

          Western Digital My Book 1110 999.5 GB

                    EFI (disk1s1) <not mounted>: 209.7 MB

                    MyTimeMachine (disk1s2) /Volumes/MyTimeMachine: 999.16 GB (657.63 GB free)

          Apple, Inc. Keyboard Hub

                    Apple, Inc Apple Keyboard

          Apple Computer, Inc. Apple Cinema HD Display

          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

FireWire Information:

Thunderbolt Information:

Kernel Extensions:

          com.wavtap.driver.WavTap          (1.6.6)

          com.bresink.driver.BRESINKx86Monitoring          (7.0)

Problem System Launch Daemons:

Problem System Launch Agents:

Launch Daemons:

          [loaded] com.adobe.fpsaud.plist

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

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

          [loaded] com.sierrawireless.SWoCTool.plist

Launch Agents:

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

User Launch Agents:

          [loaded] com.adobe.ARM.[...].plist

          [failed] com.google.GoogleContactSyncAgent.plist

User Login Items:

          GrowlHelperApp

          GrowlHelperApp

          iTunesHelper

          Spark Daemon

          AdobeResourceSynchronizer

          Alarm Clock

          Evernote

          EvernoteHelper

          Dropbox

          Google Chrome

          TrapsMonitor

3rd Party Preference Panes:

          Flash Player

          Flip4Mac WMV

          Growl

          Printopia

Internet Plug-ins:

          AdobePDFViewer.plugin

          AdobePDFViewerNPAPI.plugin

          Default Browser.plugin

          DirectorShockwave.plugin

          Flash Player.plugin

          FlashPlayer-10.6.plugin

          Flip4Mac WMV Plugin.plugin

          Google Earth Web Plug-in.plugin

          googletalkbrowserplugin.plugin

          iPhotoPhotocast.plugin

          JavaAppletPlugin.plugin

          npgtpo3dautoplugin.plugin

          o1dbrowserplugin.plugin

          QuickTime Plugin.plugin

          RealPlayer Plugin.plugin

          SharePointBrowserPlugin.plugin

          Silverlight.plugin

          Unity Web Player.plugin

User Internet Plug-ins:

Bad Fonts:

          None

Time Machine:

          Skip System Files: NO

          Mobile backups: ON

          Auto backup: YES

          Volumes being backed up:

                    Macintosh HD: Disk size: 499.25 GB Disk used: 343.93 GB

          Destinations:

                    MyTimeMachine [Local] (Last used)

                    Total size: 999.16 GB

                    Total number of backups: 34

                    Oldest backup: 2013-10-26 02:26:00 +0000

                    Last backup: 2013-11-22 01:58:55 +0000

                    Size of backup disk: Too small

                              Backup size 999.16 GB < (Disk used 343.93 GB X 3)

          Time Machine details may not be accurate.

          All volumes being backed up may not be listed.

Top Processes by CPU:

              35%          WindowServer

               4%          PluginProcess

               1%          EtreCheck

               1%          Microsoft Word

               0%          ocspd

               0%          notifyd

               0%          securityd

               0%          softwareupdated

Top Processes by Memory:

          197 MB             Safari

          197 MB             WindowServer

          170 MB             Mail

          156 MB             Evernote

          98 MB              mds_stores

          98 MB              Finder

          90 MB              Preview

          66 MB              Calendar

          66 MB              com.apple.WebKit.WebContent

          66 MB              Microsoft Word

Virtual Memory Statistics:

          885 MB             Free RAM

          2.37 GB            Active RAM

          1.72 GB            Inactive RAM

          1017 MB            Wired RAM

          20.52 GB           Page-ins

          2.25 GB            Page-outs