How do I simplify a spline halfway through?

So I am tracking a hand and I am left with so many points that just make the tracking harder.

It starts off as a fist and then shows all 5 fingers than goes back to a fist. while moving. So no matter where i try to start I always end up with lots of extra points when it turns back to a fist. and if I delete them halfway through then it deletes the tracking data for that point for the whole duration…surely i am missing something

Let me see your hand roto shape? Because it sounds like you are not using the “paper doll” method for roto and that causes all sorts of problems with complex masks.

Try splitting up the hand and fingers.