Why do character faces look blurry in Far Cry 6 with DLSS Quality mode?

Faces in Far Cry 6 looked like they had a soft-focus filter, which was distracting. I switched to DLSS Balanced, which increased FPS but made the blur worse. I used GamePP DLSS/FSR Image Sampling Calibrator to raise sharpening to 72. RivaTuner confirmed the texture clarity improved significantly while keeping GPU temps at 56-62°C.