Update:
transfer to another compilation system
added performance check in the main menu (automatically sets "potato mode" at low FPS one time)
added a link to the manual if the update did not help
fixed the default screen mode (for new players)
If your game is LAGGING (less than 60 FPS):
This may be due to the fact that the game uses the wrong GPU. This issue is relevant only for systems with multiple GPUs. The update should fix the problem, as well as automatically enable "potato mode" for those with a weak computer, but if something goes wrong, please configure a working GPU: