Waves SSL 4000 Native for $466 at audiomidi.com

Hey guys,
sry for bumping but I don't wanna open a new thread.

I'm demoing the SSL 4000 bundle and I like what I hear, so far.

But the problem:
All my meters in Cubase react very very slow, also the whole responsiveness is slowed down...

Is this normal or a "demo-mode"?

specs:
AmD Phenom x4 3.2; 4 GB OCZ RAMs; Gygabite MB on Win XP.