Sync to Audio option Makes Games Sound Crackling!!

[dafamily]

Hey guys,

When trying the Virtual Pro Wrestling 2 game I get 52fps normally when I disable the "Sync to Audio" option it I get 60fps but then the sound starts to crackling, with this option checked I have the sound problem fixed but I'm back to 52 fps!!

I've tried disabling the "Fixed Audio Timing" and that works but when the camera moves around I get 40 fps but the sound is fine!!

Any ideas guys,

Thanks for the help.