I installed a Throttle Tamer on my 2018 S1000F mainly because of what I perceived as an overly sensitive throttle (fueling was not an issue). From a purely mechanical standpoint it only made about a 20% difference in the throttle response, but that amount actually made quite a substantial difference in overall controllability at light throttle operation (almost all of my riding is done at light throttle, lol, I'm an old man). IMO the throttle is pretty close to perfect now.
Another thing that helps with throttle control over rough roads is the fact that I'm still using the factory rubber grips, and there's a sort of friction "option" available at the root end of the grip because the Throttle Tamer doesn't have the root-end flange that the original throttle tube had, so I can just kinda hold the rubber flange on the grip up against the kill switch assembly and use that friction to help steady the throttle on rough roads.
The Throttle Tamer is the only mod I've made to my bike, and I'm quite pleased with the results.