Blocks are very slow to appear after breaking tree, rock, etc.

In Minecraft PE all year, despite always updating, whenever we break blocks they take forever to appear and can't be picked up. When we go in water the character walks instead of swims. If we fall from a high place it takes a long time for the damage to be applied. Also, if we choose to save external the game won't even load. In previous years save external, and all of the above, worked fine.

See a screen recording of the issues in action here: https://youtu.be/rrPXO7FF3Dc

Device: Samsung Galaxy A50 on Android 11