New hint screens, no more lagging mouse and performance improvements.

Hello all!

So, it's finally here. I have added some new "hint screens" to some of the puzzles of the game, so they can help you figure out some of the puzzles.

Another thing I did was change some stuff related to the cursor, so the mouse doesn't "lag" anymore. Lastly, while I was at it, I did some changes to improve performance in some areas. If I find more problematic areas (performance-wise), I will fix them as well.

Greetings!