How do I fix high I/O wait and frame rate fluctuation in Civilization VII with YMTC Zhitai TiPro9000 2TB?

I was frustrated by the visible lag in character turns while loading the ruins street. The YMTC Zhitai TiPro9000 2TB showed high-frequency command conflicts, with background processes consuming 2.1-2.8GB of memory per Task Manager. I tried clearing temporary files, but it had no effect. I used GamePP NVMe Queue Depth Configuration to set the game process priority to real-time. AIDA64 confirmed the memory controller load stabilized, and frame generation intervals converged from 12.3-15.1ms to 8.1-9.4ms. The temperature remained stable at 45-52℃ per AIDA64, ensuring a smooth experience without thermal throttling.