Strange FPS behavior

https://spark.lucko.me/HnebHTCBjf

When I play Minecraft, in-game, my displayed FPS drops to 1-2 when I open menus. Be it crafting tables chests, inventory, or the pause menu.

What's baffling is that this behavior is only seen when Minecraft is the focused application. I/E IT drops to 1-2 FPS in menus while Minecraft is in focus. When I pull up a different program above minecraft, it returns to the normal FPS.

This does not happen with shaders disabled. So far I've tried 2 shaders and both have the same issue.

The displayed FPS number from Sodium doesn't change from a steady 70-80 at any point.
spark is a performance profiler for Minecraft clients, servers, and proxies.
Solution
Hm try restoring default settings?
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