Need Help regarding gimbals speed rc rate

Understand the parameters are now in Mnt1 or Mnt2. I am using a servo for instance for gimbals. Now the RC_rate 0 it turns into angle control. As you know servos are fast it is very jerky if moving in angle.

I tried to set the degrees per second which works really beautifully because it slow down the turn. Sadly the issue is if I set in degrees/seconds, it turn out into something like forward reverse and not angle control.

Any way to still use it as angle control, but i can slow the turn rate so that the turning is smoother.

Other than buying a brushless motor.?