Creating Momentum and Smooth Axis Release?

Hi I'm setting up a character control system with Playmaker. I'm using Get Axis Vector to move, but my character loses momentum very abruptly and unrealistically when I let go of a joystick or move button. Is there a way to smooth the transition/create momentum?

I have come across two Actions that sound useful but am not sure how to use them- if they're even relevant... Vector3 Interpolate, and Ease Vector3.

For Example: I imagine that a RunSpeed float variable could be set up to ease in and out between zero and full input amounts.

I'm basically trying to set up a realistic momentum effect on a Character Controller. Is this possible without additional scripts?

Thank you!