http://bugs.winehq.org/show_bug.cgi?id=28509
--- Comment #6 from Alexandre Julliard julliard@winehq.org 2011-10-15 05:19:23 CDT --- It sounds like a slow Xrender implementation. You can try disabling Xrender by setting "ClientSideWithRender"="N" under HKCU\Software\Wine\X11 Driver.