ok i already download FRAPS,after that when i record my replay, the FPS of fraps soo slow.so my video is too slow
Yeah, however even having that may still cause lag with it, like mine. If that's the case then you need more processing power in your computer.
if fraps record with low fps you will lag, put up the fps recorded by fraps up and it will lag less (unless you got a slow computer)
i got a unregistered version of fraps that works perfectly fine without lagg at all.