Duplicate of MCPE-156103
I think this is a duplicate of:
Does anyone have Minecraft Preview? Is this also an issue with 1.19.10.22?
Same problem, except that it moves a step right and then begins punching. iOS 15.5, iPad Air 2.
My wife and I have this issue. She has been hosting a world on an iPad Air 2 and I joined on Windows 10. With the 1.19 update the lag has become unbearable especially with things that involve / commands or behaviour packs (we're running a one player sleep pack). It seems worse for her, but very bad for me still (presumably because she's hosted the world). When using a command it can take around 5-10 seconds before registering. Opening inventory sometimes takes a similar amount of time. This is contrasted with when I play single player on my Windows 10 machine. On Windows 10 the lag seems comparable to that of 1.18.31.
This is an issue we have on our iPads and Amazon Fire tablets with Pocket UI. I've tried out Classic UI and it seems to work fine (although note that there is no scrolling needed in Classic so it's really a non-issue for that UI).