Hey thanks for taking the time to try our game.
So the FPS bug is something that we discovered after the deadline unfortunately, it's among our top priorities for version 2. Same for the fact that you can "spam" click on objects to solve puzzles, we want to find ways to prevent that.
As for low FPS, it's also something we are working on. We had a strong focus on the visuals and it made the game really heavy.
Thanks for your feedback, much appreciated.