I just emailed Access Support asking the same question (prior to reading your post): "Do I have to route the audio through the USB back into Ableton when using virus control? Or can I use the physical "audio out' ports of the TI Desktop to a physical mixer and only use the Virus Control for midi/sequencing?"
I just received my TI Desktop a week ago, and I'm a little bummed to find out that it's either 'Total Integration' or not at all... Can I just get "Semi-Integration"?
So, am I right that you guys are having the same issue? Can Virus Control be used only for sequencing purposes? And would that help the latency to not have to route the audio through the USB?
I'll post whatever Access Support responds with...
Cheers