When falling, player jitters in floor

If i let my player fall from 1000cm or more, he gets halfway stuck through the floor and slides like an air hockey puck. Is there any way I can fix this? I want to have a jumping out of window mechanic :slight_smile:

I will leave this open overnight. Cant say for sure how long ill be up, but its 8:20 here.

Ok, now it just seems that when I fall, forward and back movement get 20x slower, but left and right seem to be just fine.