How to resolve SLC cache overflow issues on Seagate FireCuda 540 1TB in Space Marine 2?

Entering combat in Space Marine 2 felt like a slideshow. My Seagate FireCuda 540 1TB write speed crashed from 5000MB/s to under 600MB/s. I tried adjusting virtual memory, which made it worse, dropping FPS to 55. Frustrated, I used GamePP System Backup & Config Export to reset the NVMe cache strategy. I enabled forced write cache refresh in Windows. CrystalDiskMark confirmed 4K random read improved to 62-68MB/s. The VRM temperature stabilized at 55-60°C per Hardware Sensors. This fix restored the fluidity I needed for intense battles.