Why does my Zhitai TiPro9000 hit an SLC cache wall and spike latency during scene transitions in FF7 Rebirth?

While exploring the massive open world, I hit these bizarre micro-freezes that just killed the immersion. It was weird because the TiPro9000 should easily maintain 7000MB/s, but my monitors showed it tanking to 1100-1400MB/s once the cache filled up. I first tried bumping the page file to 32GB, but that was a total waste of time—it didn't stop the stutters and actually added 4 seconds to my boot time, which left me pretty frustrated. I eventually installed the latest NVMe controller drivers and flipped the Windows write caching policy to 'Force Flush'. Running CrystalDiskMark 4K random read tests, I saw latency drop from 62-78ms down to a crisp 32-38ms. Interestingly, when I first tried disabling the write cache entirely, the system just hard-locked during a game save; I had to re-enable it and tweak the queue depth to get it stable. Now, temps stay between 44-56℃ with the stock heatsink. Performance logs show the loading curve is finally smooth, with frame times sitting steady at 5.1-6.4ms. It's a relief to finally have it feel responsive.