For comfortable gaming in Full HD, it is recommended to use a video card not lower than RTX 3060 Ti.
If your hardware is weak, you can run the game in windowed mode instead of fullscreen or make changes in the settings file to improve performance:
2 or lower. This will help gain performance. Plus, you can also disable anti-aliasing (if your eyes are not like a baby's and do not hurt from the staircases). To do this, simply replace the
0 in the line