Buffering Bar

I am using Minecraft Nintendo Switch version. I keep getting the buffering bar in my game, when that happens I cannot do anything till it stops, very annoying. It has been happening for awhile now, I keep having to delete my world and start a new one when the buffering gets to bad and lasts for too long. It seems to be starting when I get more storage chests in my world then anytime I interact with anything it does it, with interacting chests, crafter, furnace, wandering trader, villagers, etc. please fix this issue, I am very frustrated and it is almost unplayable.

Thank-you