Why does Neverness to Everness stutter when switching scenes?

Combat felt laggy during unit summons. I tried virtual memory tweaks, but read conflicts worsened. I used GamePP NVMe Config to set queue depth to 2048. CrystalDiskMark showed 4K random read jumping to 66-73MB/s. Load time dropped from 11s to 4s, and disk temp stayed at 41-53C per HWiNFO. It's smooth now.