Thank you for the feedback! We didn't have a lot of time to tweak the inertia after boosting, I agree with the spawn being bad, noticed that too late. A little drift is part of the challenge, but yes, it might need some more refining there.
As for the audio, sorry, the web version does that and it is quite disturbing, mainly in fullscreen for some reason, it might also be browser dependent, hardware and such, can't get godot web versions to perform well, they mainly work fine in chrome and windows, only.
Thanks for taking the time to play and give some great feedback.