Here's something you might try to at least compare your Kemper with another Kemper.
There's a video of Mitch Gallagher at Sweetwater playing a PRS with the Black Bass Dimed profile that is a standard profile in your Kemper. You should be able to find the video on the Sweetwater.com site by searching for the Kemper Profiling amp.
If you play a humbucker guitar with this profile having everything at the default and then listen to his playing on this demo through the same speakers, you should be getting pretty much the same result. Obviously all guitars and players are different but this would at least be a way to start from a known same profile through the same speakers. For me, with a Les Paul or a PRS, I get a very good match.
If not pretty close you probably have something set non-default (look through your Kemper parameters) or there may be something about your sound system/speakers.
This may not be exactly the kind of profile you're trying to use, but it seems like a good quality profile and might at least give you a comparison point to start from.
Hope that's helpful.