Great game! Only had one problem with it, and it's that it EATS memory if you try to do more than one run, checked my task manager and it said it was using over 2 gigs
"If you download the game that'll fix the problem" au contraire! I'm on a mac!
I don't see any engine pointed out, but it might be a godot game? If it is, then dev probably didn't notice that Godot executables come with uncapped framerate by default. Possible fix in that case is running the game on a single core, or artificially framecapping it with a third-party software.