What should I do about the instant I/O response delays on my Fanxiang S790 4TB that cause stuttering while parkouring in Dying Light 2?

Leaping between rooftops in the city was occasionally interrupted by these tiny freezes, which totally ruins the flow of parkour. I used a latency tester and found that after two hours of continuous use, the Fanxiang S790 4TB response time climbed from 1ms to 15-20ms. It was clearly a firmware issue handling the large capacity mapping table. I tried lowering the in-game graphics to reduce the load, but while the FPS went up, the I/O lag stayed exactly the same. I realized I had to fix this at the hardware level. I flashed the latest stable firmware from the manufacturer and disabled PCIe slot power management in the BIOS. After that, the response time locked back in at 1-3ms, and the game felt completely different. I did have a weird issue where the drive took 10 seconds to be recognized after the update, but a quick reseat of the M.2 slot fixed it. Temps are between 52-60℃. I ran several stress cycles to verify the parameters and it's finally stable.