ffdshow audio/video sync issues

[Dreamer]

I'm using ffdshow to remove logo/crop the part of video, it works, but there's one issue though, not sure if it's a ffdshow or DD issue, anaway, is it possible to fix it in DD or changing the ffdshow options?

After some time the audio/video sync is broken, I need to retune channel, then it works good. Do you have any ideas to solve this problem in DD - changing the buffere size, which values? Changing video renderer, audio codec, use Direct connection or not?