Dang man, you have no idea how hard it is to make character controllers feel adequate at minimum and how much more work goes into making character controllers that actually feel good. ESPECIALLY in physics-based games. I've literally been working on the movement for vehicles for this personal project for months and I'm still not there. The acceleration curve is hard to control, the turning friction is jank, the deceleration after you go above a maximum speed is tied to another variable for acceleration and also affect the turning friction... the list just goes on and on...