There seems to be a bug within the 1.19.30 update causing players and mobs to have a laggy behavior when moving around, or really doing anything.

All Mobs will have either stop moving for a second or two, or they can be seen in the distance bouncing weirdly/(moving up/down repeatedly and fast), from what I've seen, both apply to all mobs.

And players on multiplayer or LAN worlds seem to have the same bug.

Before the 1.19.30 update I could play on my family world without an issue, and on my single player world the same thing seems to be happening.

Update: some of the lag seems to be caused by the maps.

How to reproduce:

Step one: put a map in your off-hand slot.

Step two: find a mob.

Step three: see if it seems more laggy than useual.