There is a problem, or maybe you did it on purpose, buy anyways.. When you put a star and get it, the game stops.
I think this was on purpose. That's how the game works outside of the track editor anyways. To avoid this, just place a star somewhere else that isn't reachable. (Be sure to delete it before uploading, though).
Game's been a lagging while playing. A track that is 100k shouldn't lag as if we were playing fr2 just as it came out.
What tracks are you having issues with? We haven't made any changes to the game logic that would impact FPS performance.
Oh yeaah, now I remember xd. On one of my tracks i failed like that, uploaded it before deliting that star, lost the code u_u