Why does the Tekken 8 loading bar freeze at 80% for 3 seconds on Fanxiang S790?

I can't stand it; every time I enter a battle, the loading bar freezes at 80% for 3 seconds. I tried forcing PCIe Gen4 mode in BIOS, but the system just froze at the POST screen, making me doubt the drive's compatibility. I then entered GamePP NVMe Queue Depth Configuration, fine-tuning the queue from 64 to 256 and optimizing the write cache policy. GamePP monitoring showed latency dropped to 65-72ns, and AIDA64 confirmed temps at 48-56℃. Finally time to backup