http://bugs.winehq.org/show_bug.cgi?id=9561
--- Comment #4 from Jesse Allen the3dfxdude@gmail.com 2007-09-03 21:03:01 --- Hmmm. Seems normal to me. Is it only a slow down? Could you try the DIB engine fork found here: http://repo.or.cz/w/wine/dibdrv.git
There may be visual artifacts because alot of stuff is missing, but I am looking for speed improvements. You do not need to provide a log yet if you do try it, I'm only curious on the speed.