How to stop FPS crashes during ray-tracing in the Unreal Engine 5 Demo?

The moment the extreme ray-tracing scene loaded, FPS plummeted from 60 to 15, which is a disaster for real-time rendering. I tried closing all background apps, which freed 1.2GB but didn't stop the frame drops, leaving me feeling defeated. I used the GamePP Resource Scheduler to set memory priority to Realtime and optimized read/write weights. Latency dropped to 68-75ms per AIDA64, usage held at 14.8-15.5GB per HWiNFO, and temps were 58-65℃ per HWiNFO.