Minecraft iOS performance has gotten so bad after 1.16.200 update

Before I had the 1.16.200 update, everything was fine. When I received the update, my device would all of a sudden load Minecraft worlds extremely slowly. Loading a world before the update took like 15 seconds at most, but now it's a minute. And then when I load up a world, it's so laggy and buggy. I can't connect with friends or even people who are using the same internet as mine.