qemu-kvm audio latency (100-200 ms delays), low video FPS.

[pavelspb]

Win7 64 is running inside qemu-kvm. The qemu-kvm uses ALSA (default) to play sound in host OS. Virtualized audio card is ac97. I hear 100...200 ms audio delay (using a program that play sound for some visual events, so i can see the delay). The same program real-hardware-win7 runs without audio delays. Is it possible to fix that?

Also, there is an issue with FPS (frames per second). I notice FPS reduction (video playing, simple 2D games) when i don't move mouse, but FPS increases (from ~15 to ~30) when mouse is moving. The 15 and 30 are rough numbers. By "15" i mean noticeable reduction of "fluentness" of displaying moving objects. CPU consumption is very low (not a hard applications - youtube playing, simple 2D game with moving objects). Move mouse - everything is smooth, leave the mouse - system relaxed (-;