Recommend dolphin3.5-367Audio technology and the new version combines

[rokclimb15]

You do not have many options then. I think this CPU has a locked multiplier, so it cannot be overclocked. You should use 3.5-1154 or earlier to keep your audio in sync. Another option is to use the timestretching feature of XAudio2 backend, which I see you're using. Try increasing the latency.