I know bedrock has had it's fair share of bugs but this is just unacceptable. I'm on switch and it will lag so bad sometimes that the music will loop on itself. It's pretty trippy. And annoying. I can't play multiplayer because i will immediantly lag out of any realm or multiplayer game. If i open my world to multiplayer, even if it's just friends of friends, it will immediantly lag me out of it and make it singleplayer. Bedrock edition seems to run OK on Xbox and Win 10, probably because it was made for those editions, but switch just doesn't feel the same. Like, yes, i will have some time when it doesn't lag but overall it will lag more than normal gameplay. Something needs to be done and quickly. It has been happening since 1.10 for me.
Related issues
Comments

Hey Isiah. This bug affects literally almost every single Switch out there. Been getting worse since 1.8.0. Every version 1.7 and previous was a-ok.
The community members are tracking it here:
https://bugs.mojang.com/browse/MCPE-41479
Please add any new info there, and make sure to upvote the issue and follow it for new updates. That bug tracker is the only place we've ever gotten mods to properly respond to us.