Why does MGSV HD Edition stutter on Fanxiang S790E?

I complained about experience degradation during story transitions in Metal Gear Solid V HD Edition. I tried manual overclocking to 7200MHz, which caused a blue screen. I used GamePP NVMe Queue Depth Config to increase queue depth from 32 to 256 and backed up the configuration. 4K random read speed increased from 80MB/s to 220MB/s, and sequential read speed stabilized at 3500MB/s per CrystalDiskMark, resolving the stutter.