CPU Spiking resulting in an unplayable experience

Following the update to patch 3.28.0d, I have been unable to play. Sitting in character select, the CPU performance metric is spiking repeatedly and the shaders are always high. If I am lucky to get into a map, it turns into a slideshow until I get a deadlock detected bug that crashes the game.

Alongside the gameplay issues, I am unable to alt-tab out of the game because path of exile is now, for whatever reason, extremely CPU hungry. Playing this game freezes my entire computer until POE crashes. I have tried other games and they work fine so I don't think its a failing CPU issue

I was initial running directX12, changed to vulcan, and directx11, but none of these options improved my experience.

I am running on the following

AMD Ryzen 5 5600X 6-Core processor

j have ryzen 7 7800x3d and radeon rx 7800 xt and have same problem, 32 gb ram and 16 Vram and game on SSD game is bad