Can I see pics of this, if it isn’t too much trouble? Preferably a gif (http://blog.bahraniapps.com/?page_id=21) of the 80 stereo tracks running w/ the ASIO meter in view. (Non-gif) Steinberg device setup w/ your buffer, VEP prefs. please.
Perhaps your dual xeon machine loans itself well to VEPs multithreading, more so than my overclocked 3930k, which, from what I’ve gathered, should have equal processing power.
If that’s the case, that is very very good knowledge to have for the community.