How to fix M.2 I/O congestion in Total War: Warhammer III?

I was frustrated by severe stuttering during army charges in Total War: Warhammer III on my Soyo SY-狂龙 B365M-V3H. I tried closing background apps, but the I/O bottleneck remained, causing 20-30ms frame spikes. I used GamePP Resource Scheduler to set the game priority to Real-time. This stabilized the load, reducing frame intervals to 12-16ms via GamePP Benchmark. The temperature held steady at 52-58℃ per GamePP Sensors. This solution saves your performance from I/O overload.