http://bugs.winehq.org/show_bug.cgi?id=24405
--- Comment #2 from Andrew Nguyen arethusa26@gmail.com 2010-09-14 21:52:37 CDT --- Presumably you have CPU frequency scaling enabled; does pegging the CPU to a single clock speed help? If so, it's not a defect in Wine but rather an issue with older games that try to time the CPU but don't account for CPU scaling.