Min drive and drive frequency
Minimum drive is the least % of full throttle that you can have. E.g. 5% min drive and as soon as the esc turns the motor, it's turning 5% of full power. Think of it in the extreme, if you had 50% min drive you'd get "kick" off the start but hard to control throttle lower end (might be bad in really tight turns or on dirt)
Drive frequency is the number of "steps" you have. Set it low and you get fast response, set it high and you get more sluggish but smoother (great for dirt).
Novak has good technical manuals. Take advantage of them (but feel free to ask if the terms throw you off).