it gets boring from time to time when the game is in normal slow phrase i wish i can do the bug of speed up again :(
Since you're still having that problem, could you help me test a possible fix?
https://github.com/omicronrex/gms_scheduler_fix/releases/tag/v1.0
Someone has made a .dll that might fix the problem for all games that use the same engine. Just download DGBHELP.dll and place it in the First Cut folder. If I can confirm that this .dll fixes the problem then I will release an update that includes it.
The bug is what causes the game to run slowly. It should be running at a solid 60 frames per second, and it will play in slow motion if it doesn't. From the sounds of things your game is running at a lower FPS than it should. The gameplay gifs on this page should give an idea of how fast the game is meant to look.