Vinterp on moving target

To be honest, it’s first time i use vinterp node. And i guess you understand my problem. I agree, it’s logic and normal behavior.

My pawn can not move other than by a click of the user on an object. And, to keep it simple, I stupidly used the interpolation speed as the speed of movement of the pawn.

If this is the wrong way to do it, how to manage a speed of movement independently of the interpolation speed?

I have this for now :