Consider adding VSync. Despite being a 2D game, it is making my GPU temperature(normally at 35C at ~20C room temp) skyrocket on the title screen. Same issue as with Voyager-19.
Moving forward, please, add VSync, either as an option or otherwise, by default to all of your future(heck, even current) games. Your games are really cool, and I don't mean any offense by this.