Why does Remnant II freeze for 0.7s when opening portals?

I was exploring otherworldly ruins when every portal opening caused a 0.7s screen freeze, totally killing my combat flow. I tried installing the game on a SATA HDD, but loading times jumped from 10s to 40s via CrystalDiskMark and the stuttering persisted. To fix this, I used GamePP NVMe Queue Depth Configuration to increase the queue depth from 1024 to 2048. I also saw read latency exceed 130ms in GamePP before the tweak. After the change, CrystalDiskMark confirmed 4K random reads hit 62-70 MB/s, and AIDA64 showed temps stable at 40-48℃.