Tapestries are meant to be able to add as much as you want to them.
The behaviour you described is just like a standard android launcher. While I can see why some people prefer that, it's not the experience we wanted.
The scrolling in tapestries is as fast as you swipe. The space at the end is to always show users that there is extra space to add more.
I'm curious to see if others are having the same issues.