Why does Metaphor: ReFantazio stutter during teleportation on Great Wall GW3500 1TB?

I was frustrated when the Great Wall GW3500 1TB hit SLC cache saturation, causing write speeds to drop from 5000MB/s to below 700MB/s per CrystalDiskMark. I tried setting virtual memory to half the disk space, but it only made frame drops worse. I then used GamePP NVMe Queue Depth Config to increase the queue depth from 1024 to 2048 and enabled forced write cache flush. CrystalDiskMark confirmed 4K random read improved from 45-50MB/s to 65-72MB/s, and load times dropped from 10s to 4s. Disk temperature stayed stable at 40-52℃ per AIDA64.