When speeding through the city in Neverness to Everness, my drive causes frame jumps. Is it a cache issue?

While blasting through the city streets, every time I whipped the camera around, the FPS would bounce between 55 and 80. It completely killed the immersion. The Fanxiang S910PRO 2TB has a large dedicated cache, but when handling the extreme bandwidth of PCIe 5.0, the cache refresh cycle fluctuated between 10-30ms, making data delivery uneven. I tried enabling 'Game Mode' in Windows, but that was just a surface-level fix that did nothing for the hardware bottleneck. I went into the driver panel, switched the cache refresh policy from 'Auto' to 'Manual,' and updated the NVMe driver. RTSS showed the frame time variance shrink from 18-35ms down to a consistent 20-24ms. The image is finally stable. I did notice the SSD temp jump from 55℃ to 68℃ after the change, so I had to crank up my case fans to compensate. Now it runs at 62-68℃ with the heatsink at 50-55℃. Memory temps stay around 58-63℃.