How to fix material loading delays in UE5 Matrix Tech Demo?

While running the UE5 Matrix demo, I noticed brief delays in high-res material loading during fast camera rotations. I first tried enabling low-latency mode in the drivers, but this caused slight screen flickering, indicating a low-level scheduling problem. I used the GamePP NVMe Queue Depth Configuration to increase read queue depth from 32 to 128 and enabled write merging. 4K random reads hit 72-85MB/s per CrystalDiskMark, latency hit 25-45ms via AIDA64, and CPU temps were 70-80°C per HWMonitor.