Ok I tested the rig Bruno mentioned. YES, there it is for sure a very very noisy profile.
I posted a file here. First you will hear a high gain uber patch. noise gate at zero. i just noodled and kept the guitar open, pretty dang quiet, just as a point of reference. Then I loaded in the patch in question, and it is very noisy. What I noticed is that there is a pedal put in Stop A, one DS. The volume on that Pedal is turned all the way up. When I brought down the volume of the pedal back to 0, the noise went away. also, taking the pedal out and adding full on gain with the gain knob on the kemper produced just as much gain, but with no added noise...
SOOOO, is the stomp pedals the culprit to adding noise? sounds like it. However this stomp pedal in this patch was used to the extreme, with the volume all the way up. I wonder if it would be best to keep pedal volumes reasonable to keep added noise in control.