http://bugs.winehq.org/show_bug.cgi?id=33814
--- Comment #4 from tdsbug@gmail.com 2013-06-17 13:56:37 CDT --- (In reply to comment #3)
Does using WINEDEBUG=-all help? It looks like buffer maps are more expensive in debug contexts, and the commit in question allows VBOs to be used for more draws.
Yes, WINEDEBUG=-all does noticeabley increase fps, but it's still much slower from what it used to be.