The player can walk and move in the normal way, but this does not happen when demolishing or placing a block. The animation of demolition is gone and the block returns to its original place after disappearing. If the block does not reappear, it will take a very long time before the block falls to the floor, reduced in size, so that you can pick it up. But then it is not possible to pick it up. This is only possible after waiting at the block for a long time.

The mobs/animals stand still, they do not move and make no sound. They also don't move when you hit them. After a while they sometimes move for a short time, but then they stand still for a long time.

The products on fields or sugar cane grow very slowly, so much slower than is normally the case.

When it's almost night. The sun goes down a bit and then changes to daytime and it becomes light again. It also happens that in the middle of the night it suddenly becomes daytime or vice versa.

Opening chests/inventory/stove or other similar blocks takes a lot of time until they are actually opened. Placing in or out of these blocks also takes a long time, which means that items temporarily disappear (not visible, they come back after a while) from your inventory.

I have the feeling that while the player moves through the world in a normal way, the world stands still and comes to life again for a while. Sometimes you can demolish and pick up 2 or 3 blocks in the normal way, but this is only for a short time.

(I hope it's clear and understandable )