As always with the new updates bedrock introduces new problems into the game. Since the 1.21.0 has been released i noticed that the game refuses to load chunks as fast as it did before the update, for example walking in slow loading chunks will make you see through blocks, slow blocks updating (placing torches won't light anything and you have to wait until it loads it), opening doors won't work, and so on and so on. Notice i never had this issue before the last update of course so it's not a performance issue, also i'm not the only one facing this problem. Here's the clips as a proof. Please don't put this ticket in other "slow chunk loading" tickets because this is only reliable to the current version and it wasn't an issue before the 1.21.0 . 

https://1drv.ms/v/c/f5dfdba10b8e263e/EQcekDNEjaZAmiGN3_dfKAIBIwnR1wkuWyHIfghtZXZbGw

In the firs clip you can ear when i dig blocks there is no sound at all.

https://1drv.ms/v/c/f5dfdba10b8e263e/Eee3HAFR0TxHrpXu8h2-W5kByJRr1xPFT317utY4CHkToQ

In the second video you can see how this bug can ruin gameplay experience and how i died because of it.

No fall damage sound, no door opening, no blocks loading. I don't know if it's a chunk loading issue or what, but this is a big problem for sure, it is literally unplayable right now.