1.21.12x is so lagy and not smoth + i cant turn off vsync

hi

The game is very laggy and not smooth at all. For example, in version 1.21.114, the screen is completely software-based and 144 Hz and 144 frames per second are seen. But after 1.21.120, the screen is completely laggy and, for example, 60 Hz is seen. I tried turning off vsync, which might be better, but it turns on by itself.

pls fix it ❤️