How to fix blurry textures in Horizon Forbidden West with DLSS Quality?

Seeing the metallic shells of mechanical beasts in 4K for the first time, the blurry smearing effect made me desperate to fix it immediately. I first tried switching DLSS to Ultra Performance mode, but the image became so blurry it felt like looking through nearsighted eyes. I then used the GamePP DLSS/FSR Image Sampling Calibrator to raise sharpening intensity from 50 to 82. Metal textures became sharp again per RivaTuner, GPU temps remained stable at 62-68℃ per GPU-Z, and fan speeds hit 1600 RPM per HWiNFO.