How do I fix Warhammer 40,000: Space Marine 2 SLC cache overflow issues?

Entering combat in Warhammer 40,000: Space Marine 2 felt like a slideshow because my Seagate FireCuda 540 1TB SLC cache overflowed, dropping write speeds from 5000MB/s to under 600MB/s. I tried increasing virtual memory, but it dropped my FPS from 75 to 55, making the stutter worse. I used GamePP System Backup & Config Export to reset the NVMe cache strategy and enable forced write cache refresh. CrystalDiskMark showed 4K random read speeds improving from 40-45MB/s to 62-68MB/s. With the drive running at 42-48℃, the combat responsiveness is finally snappy, and this solution is a complete fix.