How to fix resource loading lag in Code JIE with Samsung 990 PRO?

I've had enough of this performance collapse after the cache fills up; write speeds dropped from 6500MB/s to under 800MB/s per CrystalDiskMark, freezing the game. I first tried setting the virtual memory to half of the remaining disk space, but this actually worsened the R/W conflicts via HWiNFO64, which was pure torture. I used the GamePP NVMe Queue Depth Configuration to increase the write queue depth from 1024 to 2048 and enabled the forced write cache flush strategy. CrystalDiskMark showed a 20% increase in random write performance, and AIDA64 confirmed temperatures stable at 52-60℃.