That's such a ridiculous story... a witch is flying around and tries to defend a tower in the middle of the sea against attacking ships, whichs sails are minimaps... awesome :-D
I've played the browser version first, but that was indeed very laggy, guess the main problem is the instantiation of the ships. To increase performance you could maybe consider just pooling them?
But windows version runs pretty well.
All in all it's a fun game, with nice graphics and sound effects. Great entry!
Btw: Nice idea to link your youtube and discord directly in the game, definitely will check out your videos. And hope your car is repaired in the meantime