iMovie 09 iSight Capture Lag?

[somewhatvaguely]

I recently recorded a video using iMovie 09 and my iSight(since photo booth would cut off the videos) and I was getting lag on it. Is this a problem all the time or was it just me? I had iTunes AND Safari/Youtube on at the time, so was that the problem?

Thanks in advance.

 

[somewhatvaguely]

Anyone have an answer to my question?!

EDIT:

Never mind, I recorded another video without iTunes/Safari open and it was fine.