http://bugs.winehq.org/show_bug.cgi?id=28413
--- Comment #5 from David turbolad995@hotmail.co.uk 2011-09-30 07:47:03 CDT --- Since getting Wine version 1.3.29 with my Ubuntu updates today, I can definitely say this problem has improved, but it's still there. When playing 3D Pinball Space Cadet (for XP), the brief pauses still occur, but they don't slow down the game as much now. If you listen carefully, you will hear some slight crackling when the sounds in the game are played.
I've also tested Lemmix and again, the problem has been improved, but the time still pauses in levels when the lemmings are closest together and walk into the "home".
Sorry I can't do much else, as I'm an end-user of Wine without the advanced knowledge to help. I do test programs with each new update of Wine and let you know what happens.