Delirium spikes CPU

Any map with delirium causes the CPU to spike. As more effects are rendered the game slows down and I get killed. Impossible to play.

12700k , 3070 Ti, 32GB ram, NVME SSD, dx12, 4K, DLSS 4 Balanced

I had to set power plan to "power savings" otherwise the game ran at 100% CPU and crashed to desktop.

3 patches ago it ran perfectly in "performance" power mode maxing out in low 60C. Now I can't even maintain 60 FPS.


My AMD Ryzen 9600X , RX 7800 XT, 32GB ram, NVE SSD, dx12, 4K, FSR got warmer by 10C but still perfectly playable.

Why such a big difference?