DLSS Image Sampling Calibration
High-speed corners in AoE II looked blurry at 4K. I tried switching DLSS to Balanced mode, which improved FPS but made the blur worse. I then used GamePP DLSS/FSR Image Sampling Calibrator to raise sharpening intensity from 50 to 75 and set render resolution to 100%. RivaTuner showed a significant increase in effective render pixels. GPU-Z confirmed the GPU stayed at 2610MHz. This is the best way to switch to sharp visuals.