How do I fix write stuttering in Horizon Zero Dawn with Samsung 990 PRO 4TB?

Loading new areas caused constant stuttering, which was incredibly frustrating. I tried cleaning up temp files, but the bottleneck persisted despite free space. I used the GamePP NVMe Queue Depth Configuration to optimize SLC cache scheduling and enable forced write cache refresh. Sensor monitoring confirmed write speed jumped from 800MB/s to 6000-6500MB/s, and AIDA64 showed drive temperature at 48-52℃, ensuring I could backup my save files without lag.