Thank you for the detailed feedback + criticism! It means a lot.
When you say the music gets distorted do you mean there are too many different sounds happening at once or something else? I'm not saying you're wrong, just trying to understand the issue more.
Framerate issue definitely happens on web builds and godot does not compile shaders on runtime, so that causes a stutter whenever they are called for the first time.
In terms of spinning difficulty we tried to fine tune it as much as we could before the deadline, the game definitely punishes you panic spinning, and encourages you to not change spin directions.
The mouse transition was our team! We were called Rat Barbecue that was our logo.