Chunk rendering on the Switch is just horrible AND ITS NOT FIXED! You just cant fly with an elytra and explore properly, sounds are not synchronous everything is just slow when you have a world where you played multiple hours on. The problem was NOT fixed in 1.16.100 nothing changed. Im afraid of 1.17 when the world is 64 blocks deeper that means more blocks to load equals longer chunk rendering. CHUNK RENDERING IS SLOW