The editor allows you to define curves and sample them:
And that’s already an overkill since you could have done it directly in the Timeline itself:
The node 
should have been Last Updated Velocity. This would stop the player over .1s using the curve; can be made more consistent but that’s the gist. It’s also quite accurate bar the very last frame in very low framerate scenarios. But it can be snapped.
There’s also this handy node:
With some built-in curves and params.
Or that. The one with the least overhead, for sure.