Curves for character controlls

Hello, i am using Input Axis Turn → Add Controller Yaw Impulse for character rotation. Everything is fine, but Axis value in InputAxis Turn node return linear results, which mean, speed of rotation is the same. I would like have pretty heavy/slow rotation on start and pretty easy/quick rotation in the end. I know it could be a challenge, because we talking about “follow mouse rotation” not like rotation on constant, after some event happens.

Spring arm - is ok, but as i said, i would like to control curve of animation of rotation.

To be more clear, i want do same as in Graph Editor in Maya, but not for constant/static animation, but for animation of character rotation by player =) is it possible ?

example of smothing tangets in maya