ummm… just to confirm you are using a character right? with a character movement component (inherited)?
assuming you are using "walking’ movement mode (character doesn’t need to be actually walking, because the capsule more like slides along the ground)… there should be a bunch of options to get the result I think you are aiming for
In addition, to modify your turn characteristics, the other things I’d experiment with are:
- physics fluid friction (in project settings) which affects acceleration, deceleration and (I think) traction
- physics material on your character/pawn/actor and landscape surface