I noticed a huge improvement on audio performance meter of Cubase after upgrade to 7.
I am able now to work in my bigest template of 100 tracks (45gb-ram loaded) at 64 samples (total of 4ms latency) with no clicks and pops, my audio performance shows approx 20% max and cpu about 35%.
on VEP6 I could work without any clicks at 256 samples, cpu at 45% and audio performance meter at 50-70%.
big difference
though some minor improvements have to be done from developers, its a very nice job.