I was. It just seems like there is a lot of rendering for nuthn. I reproduced what you described withw the 8 tracks and a song at 44.1 and added a compressor, 3band equalizer echo and sample delay (just picked two more randomly) and I still at real time (no render needed).
Not for nuthn cause this is really unrelated to your problem, but did you boost up your real-time audio track in the preferences? I saw your machine specs in your profile. It's fast enough.
What I am saying is, maybe you won't have this problem if you dont have to render audio in the first place.
Thank you
Roy
