This could help a lot
TUNING
High speed controls bottom out and square edged hits, however, you will have to compromise if you go either way. Increasing high speed compression will prevent bottoming out, but the ride will be harsh.
Reducing high speed compression will make the fork feel more plush on the square edged hits, but will cause the fork to bottom out. The idea is to tweak to fit your riding style and terrain.
To tune high speed compression, start with the knob in the middle, ride, and adjust as necessary.
If your bottoming out your fork with the high speed compression knob fully clockwise you need a stiffer spring. (more air)
Low speed compression is just as easy to tune as high speed. Higher compression means less pedal feedback (bob) and brake dive.
Lower compression means better small bump sensitivity.
Find a good medium that will both reduce user feedback while still maintaining small bump sensitivity.