I have been attempting to do some home recording on cubase, and recording one track is fine, but then when I playback a track and start recording another one, the timing gets off by a split second like theres some sort of lag. I am recording through my digitech rp350, I think my computer is fast enough to run cubase, is there any other problems that it could be other than the computer not being able to keep up, and lets assume my timing when i record is spot on. Is there any other possible cause for this problem?