You can increase the head speed in hover by moving into idle up (turn up the idle-up mode throttle curve setting).
This will make the heli more stable and cause the gain or loss in latitude while hover to be a function of pitch more than rotor head speed. You will achive a more stable hover and a smoother climb/decend.

HOWEVER. Your flight times will decrease & more importantly if you are still learning you will do the funky chicken every time you crash if you are practicing hovering in idle-up. It will really smash up your wallet.
I would say BAD idea to try to learn in idle up.... You may be able to achive what you are looking for by lower the pitch a bit and trimming up the throttle. Just remember to put things back when you advance past hovering.