Hi Tottori, first off thanks for playing! Second, Im sorry you had some problems.
I could definitely understand lags on the web version as there is a lot of game objects in the scene and it has to load. If you wanna try it with hopefully less lag, may I recommend trying on downloading it?
I was a bit tough on the levels maybe because when I was designing I play tested a ton! and got pretty good at so I might’ve missed the difficulty increase, however I could see it being a problem so I likely will go back and balance the difficulty.
As for the timer, that is no bug. It stays going throughout the 8 levels and if you make it to the end that’s how long it took you to complete the entire game!
Thanks and good luck if you try again!