I just opened a current mix-project which I started in Cubase 5.5.
In C5.5 I am at about 55% CPU
In N5.5 I am now at about 70-75%!!!
I set up N5.5 from scratch, not using any prefs from older versions or cubase. Did I miss a setting?
Brandy
Not here… Maybe you were using Cubase 32 bit and now you are trying to load your project into Nuendo 64 bit?
No - both (still) 32bit!
No - I absolutely dislike C6 
Well, it is mainly processing power of a certain plugin. Maybe it is more an issue of that plugin: Slatedigital FX-G
My fullblown mix with about 150 tracks/groups is on my i7 system about 25%… switching FX-G on increases the performance shown on the Asio-Meter to about 55% in C5.5 - and in Nuendo to about 75%.