I have been monitoring this thread/topic with regard to CS5.5 and was hoping that CS6 would resolve the issue, but it hasn’t for me. I’m also a FCP7 -> PPro user, but so far I’m disappointed due to this issue.
My mac is a quad-core 2.26 GHz Xeon MacPro4,1 with 24GB ram and the original Nvidia GeForce GT 120 display running 10.6.8 with all the updates. I did do a fresh install from scratch recently onto a new HD. I am wondering if this an architecture problem related to this particular MacPro build. I have read that older machines don’t have the same problem. I wonder if newer MacPro machines work fine as well.
The problem is identical to the one described in the above video “Premiere Pro Lag Part 5”. The lagginess is a function of the relative size of the timeline panel.
I haven’t tackled a large project yet, so I don’t know if this gets worse with project complexity.
I’m seriously considering a PC.