So it's either extremely janky movement or extremely stiff, though stiff is much better. However you guys did add the 'drift help' feature which is basically the same thing as rush, except its not because its limit is a 25 degree angle while in rush it's closer to a 37 degree.
Rush also has a 'Angle' put on the drift, obviously in this new one the angle is removed+the cars come to a complete halt, making for very painful controlling experience. This is because the physics in drift make a horizontal movement stop the car, unlike in rush, which only grants a slow debuff until the car eventually stops. If you Hold drift in a circle in Rush you will go in a very large circle, if you hold drift in kartrider drift you will go in a small half circle and stop.