Very cool aesthetic, interesting worldbuilding and gameplay concept, but blimey, the performance is awful! And, of course, there are no settings of any sort to ameliorate the issue. No graphics options, no mouse sensitivity, no windowed mode, nothing! Plus, for a game that seemingly has a central progression system (with different levels and money and upgrades and everything), there is no way to save or load your progress.
Sorry, but this one is almost unplayable for me. Maybe that's an issue on my end, but I'm not willing to replay the intro every single time I try to fix it somehow.