Well, just got B21 and I cant enjoy it  

   When i start a game, it's running at a snails pace, but when I try to turn up the speed (pressing 1 like I thought I was supposed to do from last build >_>) it speeds up a little, then lags.... really really bad.  the higher I turn the speed up, the more it lags.  Eventually it crashes if I don't turn the speed back to the snails pace.  Also, the sounds and music are all distorted from the slow speed, so I know its not supposed to be like that.  Any ideas?