Hello, the cause might be that you haven't migrated your Minecraft account from Mojang to Microsoft
You can do this by following this steps (click the word in blue).
If that doesn't work feel free to create a ticket on our discord in the #ticket-support channel, in the ticket section where we...
Hello xUnluckyMonster, sorry to hear about your issue.
From what you have described to us it seems like a performance issue with your machine or that you don't have enough RAM allocated to your game, however there's no way of telling what it is without a more detailed description of what your...