http://bugs.winehq.org/show_bug.cgi?id=19889
--- Comment #33 from Brandon Howard FinalCrisisSX@Hotmail.com 2011-09-24 13:24:33 CDT --- It is definitely improved as you say, but I still seem to have unreasonably high cpu at times I can't seem to pin down except for one issue.
The one thing I have confirmed causes it for me.. Do you have ridiculously high cpu when you click on a menu arrow next to someone's name in the friends list?