Windowserver high cpu usage and OS laggy
After upgrading to Yosemite the graphics is laggy and also WindowServer is hogging CPU.
I've tried http://www.macissues.com/2014/10/20/prevent-the-windowserver-process-from-draggi ng-yosemite-down/ without any luck
MacBook Air, OS X Yosemite (10.10), 13" mid 2011