No, I have done nothing to xvidcap or my machine to make xvidcap faster. I use the mpeg2 codec for video and like you, no audio. I generally record 1024x768 at a target of 25fps, but it frequently drops to ~17-20fps. This is on a core2duo 6700 (2.6GHz). I'd suggest trying the mpeg2 codec, which you can always transcode to other formats later.
Try a different codec?
No, I have done nothing to xvidcap or my machine to make xvidcap faster. I use the mpeg2 codec for video and like you, no audio. I generally record 1024x768 at a target of 25fps, but it frequently drops to ~17-20fps. This is on a core2duo 6700 (2.6GHz). I'd suggest trying the mpeg2 codec, which you can always transcode to other formats later.