How do I stop loading stutters in Metaphor: ReFantazio on Great Wall GW3500?

I hit a wall in Ozma where teleporting caused massive stutters. My Great Wall GW3500 1TB SLC cache was saturated, dropping write speeds from 5000MB/s to under 700MB/s per CrystalDiskMark. I tried increasing virtual memory, but that just made the disk thrash worse. I then opened GamePP NVMe Queue Depth Config, bumped the queue depth from 1024 to 2048, and enabled forced write cache flush. The result was immediate. CrystalDiskMark showed 4K random reads jumping from 45-50MB/s to 65-72MB/s. Load times dropped from 10s to 4s, and AIDA64 confirmed stable disk temps at 40-52℃.