Minecraft Bedrock GUI Extreme LAG

I am having serious lag problems on Minecraft for Windows 10, even though I have a very powerful PC. The game runs at 30/35 fps when the gui is visible but when I press F1 the game is about 250 fps. I tried to reinstall the game and delete all my worlds I even tried to put the graphics settings to a minimum but the problem is not solved. Do you have any solution? Because I'm literally going crazy.                                                      Update: Putting the fov to 30 even with the gui the game does not lag