Minecraft goes down to 0.4 fps all the time

Minecraft 99/100 times permanently drops to under 1 fps in the menu or in-game, or anywhere. This makes Minecraft completely unplayable. I am running an RTX 3090 with 32GBs of ram, so it's not just a weak system that has performance issues; this is a very powerful system on the latest drivers getting unplayable performance. I have re-installed my graphics drivers and Minecraft, and still nothing. At this point, I am basically forced to do something else, and on the off chance the performance doesn't tank, it will happen anyways within a number of minutes. I have tried running another game side by side, and everything else works fine, but Minecraft stays at 0.4fps