I see what you mean about the lag, it seems there's a stutter on the itch version again... I think that might just be outside my control, as it changes from day to day, I think I'll link the Newgrounds version on here from now on... much more stable. And fair point about transitions between scenes, the animations probably should be a bit faster, and flashier. I wasn't able to recreate the crash, but it might be due to a very subtle bug, could you send me a screenshot of the developer's console? It would really help me out: