Why are textures blurry in 4K Marvel Puzzle Quest?

DLSS Quality mode made faces look soft. I tried Balanced mode, which increased FPS but made blurriness worse. I used GamePP DLSS/FSR Image Sampling Calibrator to raise sharpening to 72 and set render resolution to 100%. RivaTuner confirmed restored sharpness, and AIDA64 kept GPU temps stable at 54-60℃.