http://bugs.winehq.org/show_bug.cgi?id=31365
--- Comment #3 from Qba qbanin@gmail.com 2012-08-01 13:08:41 CDT --- While I have 20-25 and higher fps, the cpu usage is around 80%, but in the moment when fps drop to 10 and lower fps, cpu usage of the game process grows to 100%. After ~30 secs everything come back to normal, and repeat after another ~30 secs.
Diagram of cpu usage looks more or less like a sinusoid.