Every version of iShowU, when I watch my final video, I feel like the fps is really low, but I tried multiple FPSs like 25, 29.97 and 30. I tried everything I can to speed up my videos, but it's to slow, it's barley possible to watch. What version of iShowU will work the best with my iMacG4, running 10.4.11, 512MB of RAM, 1.25GHz CPU?