My browser / operating system: Windows NT 10.0, Chrome 133.0.0.0, No Flash version detected

LaggyProject
The link above is the project im talking about.

When you start the game and try to move the player, it lags. When you go inside the editor and play the game it will also lag. But when you are inside the editor and the game is on, then you click the “Player” sprite while the game is running, the game will unlag for some reason???? You can also unlag the game by going fullscreen then out of fullscreen again when you have the code for the “Player” sprite equipped??? Why's this? Is it just a scratch bug? Or is it because of the clones in the “Grid:Rock” sprite.

Thank you for your response!