Why does KCD2 have texture pop-in with ADATA XPG D300?

Textures were pixel blocks while riding in Roseburg. Increasing page file to 32GB dropped FPS from 78 to 61. I used GamePP BIOS Load Line Voltage Adjuster to set timings to 36-38-38-72. HWiNFO confirmed voltage at 1.30V. AIDA64 showed latency dropping from 102-115ns to 76-82ns. The world is finally crisp and stable.