Hi, and thanks for playing. Lag is caused due to a mirror I think, which renders a scene twice. Turning off V-Sync might help. I test on i5cpu, 750ti card, 4gb ram and I get fps drop to 30-40 in the bathroom. I should figure this out in the next update. And I should probably just tell you the answer to the puzzle is 35, I don't want people to get stuck on puzzles and thanks again, appreciate it.