Ground textures are disappearing in high-poly scenes in ZZZ with my Kioxia G4. Can I fix this with priorities?

Sprinting through the Hollow only to have the road turn transparent is a joke; it felt like I was playing in a void. The Kioxia EXCERIA PLUS G4 1TB struggles with high-poly assets, with throughput swinging wildly between 1500-2200MB/s, which just can't keep up with the engine. I tried installing the game on a different partition, but the problem persisted—clearly a controller scheduling issue. I went for a brute-force fix: forced the virtual memory to 48GB locked on the SSD and used a process manager to set the game's I/O priority to 'High'. In my analysis, texture pop-ins dropped from 4 times a minute to almost zero. Setting that 48GB page file initially added 8 seconds to my boot time, which was annoying until I cleaned up my startup apps. SSD temps are 42-50℃ under load. I exported the I/O logs and fan speeds are steady at 1400-1600RPM.