UE5 keeps stuttering like crazy when loading high-poly models with G.Skill Trident Z 8GB RAM. Why?

While running that absolute resource-hog of a Matrix demo, I noticed my RAM usage spiked to 98% instantly, and then the system started hammering the drive. For a hardcore tech enthusiast, that kind of frame drop is just baffling. The G.Skill Trident Z DDR4 3200 has a response time between 14-18ns, but since I only had 8GB of physical capacity, the virtual memory swap frequency hit over 120 times per second, sending frame times skyrocketing to 85ms. I first tried killing every unnecessary background service, which freed up about 400MB, but the second I hit a complex scene, it froze again. That basic cleanup was a total waste of time. I then dove into Advanced System Settings and manually locked the virtual memory to a fixed 16GB value while disabling system memory compression. Monitoring via Resource Monitor showed hard page faults plummeting from 1200/sec to just 45/sec, and the stuttering finally eased up. I actually tried putting the page file on a mechanical HDD at first, which was a nightmare—system response times jumped to 300ms until I moved it back to the SSD. RAM temps stayed between 36-41℃, and disk latency sat at 0.8-1.2ms. Benchmark tests confirmed the swap efficiency is way better now. Config saved.