First of all, Minecraft now takes forever to load on the loading screen, about 5-15 seconds longer. Sometimes, when you open chests, open the pause menu, or try joining a world, the loading pop-up comes up, and takes 20-50 seconds to go away. Servers also take longer to load an lag heavily. Servers also take long to load.
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Thank you for your report!
We're actually already tracking this issue at MCPE-62708 and MCPE-111640, so I will resolve and link this ticket as a duplicate.
If you would like to add a vote and any extra information to the main tickets it would be appreciated.
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Yes, this is so true. Another big issue on the Switch is sound delay! Thank you for posting that!