There is a low perfomance of the game afther use tnt, in my situation i used one time 10 tnt at the same time and 40 the second time, and there is lag (more than 10 fps less) all the time afther the tnt use, lag does not disappear in the time, the option to solve the situation is go out the world and back to the world, but is so tedious to do this all the time when i am finding netherite.

I have a Hp computer with intel core i5 procesor and UHD intel graphic , in 1.16 there was no lag, one time i activated 300 tnt and fps was normal, in 1.17 is not good.