Thanks you so much for the review!
As ETN said, the level select screen and overall cropped screens should be fixed if you play in fullscreen (the blue square one, not the grey one) or play on the desktop app directly, we'll do better next time.
As for the ghosts, they DO speed up over time by some amount which, like the base speed, depends on the level. On some level they are a constant threat that doesn't speed up a lot, on others they start speedless but start chasing very quickly. It wasn't made clear enough and i'm sorry for that.
I hope you still enjoyed the game, and thank you for playing!