Game slightly laggy in the latest version on low end revices

game is slightly laggy in the latest version of Minecraft 

in the older version like 1.21.0 and 1.21.10 it's not happening

but when i updated to the latest 1.21.21 version it's getting laggier that before

i got 40 to 60 fps when playing on 1.21.0 and 1.21.10 and now i get 10 to 30 fps with lowest render distance and make it unplayable 

 

please fix this