http://bugs.winehq.org/show_bug.cgi?id=20260
--- Comment #2 from Henri Verbeet hverbeet@gmail.com 2009-10-05 08:00:07 --- Created an attachment (id=23937) --> (http://bugs.winehq.org/attachment.cgi?id=23937) patch
Do you have any idea what eaxactly causes the slowdown? Is this specific to GF FX, or do you simply don't have data for other cards? Alternatively, does the attached patch make any difference? It's completely untested, of course.