Imac Built-in Isight and YouTube

Ok, I've bought several different software packages for recording video with my built-in isight but no matter what I use my mouth seems out of sync with the audio and the framerate seems rather low.

I've tried using ishowu HD, evocam, and built in photobooth.

No matter what I do the framerate seems low and I struggle to get good quality.

I would like to be able to record in good quality under ishowuHD so I can record from the isight and my desktop simultaneously.


What can I do in terms of settings to get the most out of my imac's built in isight?


Is there a certain video size that agrees with it and/or a certain compression format?



Also, is it normal to wave a hand in front of the cam at a fair distance, not too fast, and it to appear blurred?


Thanks ! I need help !

ok the problem isn't the programs...

i've come to realize that the problem is the lame framerate i'm getting out of the isight !

it's fluctuating between 15-20 fps at best, how can i make it hit 30fps while recording, it's not a cpu problem by the way...

i rad in several places that lighting can be a big factor but changing lighting doesn't seem to help