Just a thought but have you checked the input settings. These are independent between Browser and Performance mode. Even if they are locked the two modes could be different. If your Noise gate or clean sens settings are different it might account for different triggering.
good suggestion. I’ll double check that, however I did play around with the noise gate a bunch from totally off, to most of the way up and couldn’t get it to work. I should see about clean sens, but that’s set about where it ought to be.