At the version 1.16.200, input lag happens.

 https://www.reddit.com/r/MCPE/comments/k9qqgz/possible_fix_for_input_lag_in_116200_on_windows_10/

Another way, Chinese/Japanese characters look so bad at a semi-resoultion.

It was look like the picture(III III IV) and now it is (III III I IV) .