Why does the Nioh 2 loading bar freeze at 90% on Zhitai Ti600?

I was thrilled to experience this hardcore action on PC, but that excitement turned to confusion when loading bars froze at 90%. I first tried cleaning disk fragments, but this was useless and only increased SSD write wear. I used GamePP NVMe Queue Depth Configuration to increase the depth from 32 to 128 and enabled forced write caching. RTSS showed loading time dropped from 15s to 6s, and AIDA64 confirmed drive temperature at 42-48℃, with throughput at 15-30MB/s per CrystalDiskMark.