How to fix slow model loading in Expeditions: Rome?

While organizing my Roman legions, I found resource loading became abnormally slow, with models popping in late. I tried reinstalling the NVMe controller driver in Device Manager, but loading speed only improved by 2%, proving this couldn't hit the deep bottleneck. I used the GamePP Peripheral Driver Conflict Detection Tool and found a third-party backup service competing for I/O, which I set to manual. CrystalDiskMark showed reads at 68-75 MB/s, HWiNFO64 confirmed temps at 40-48℃, and GamePP sensors clocked latency at 12-30ms.