How to fix blurry textures in Ark 2 with DLSS Quality?

When examining dinosaur skin textures, the DLSS reconstruction made everything look blurry, creating a 'smudged' effect that was glaring at 4K. I tried switching DLSS from Quality to Performance mode; while I gained 15 FPS, the blurriness worsened. I used the GamePP DLSS/FSR Image Sampling Calibrator to raise sharpening strength from 40 to 65. RivaTuner showed a significant increase in effective pixel fill rate, and the metallic luster of scales became sharp again, with GPU temps stable at 58-64℃ per HWInfo64.