I have a XONAR DG sound card and in games there is a noticable lag between, for example, shooting and hearing the gun noise. There are also issues with lip sync in cutscenes and such due to the audio latency. I did tests in audiacity and the latency is about 200ms. I tried the unified drivers and messed with the settings a bit, nothing helps.
I tried the onboard audio for comparison, the onboard has about 50ms less lag. Ideas?