Problems with loading larger worlds

As of the past few weeks, I've noticed a rapid decline in my Minecraft performance. It's currently to the point every time I try and load up my world, the loading screen freezes, music stops, background image stops rotating, etc. I figured it was my Xbox getting old so I bought a brand new Xbox One X. The most powerful console on the market. This did fix the issue... For about a week. It does the same on my realm, thus this occurs on all Bedrock edition devices. It was then I realized it was the game and not the device. It makes playing impossible as it does eventually crash after roughly 5-10 minutes of being frozen.