You can fix this by restarting the game. In RenPy, on which the game is being developed, there is a problem with a memory leak. In addition, you can customize the game in the performance settings by clicking the right mouse button or by clicking on the gear on the phone.
Yeah that's was the first thing I did, you said ''restart in renpy'' I tought it was something more complex idk, anyway as I said I restarted but it didn't worked, I also changed the config but it didn't worked as well