How to fix screen tearing in The Witcher Remake at 2K resolution?

Entering the forest map for the first time, I saw obvious horizontal tearing during quick turns, which felt awful at 2K. I tried enabling V-Sync, but input lag increased instantly, making the controls feel like I was walking through mud. I decided to use the GamePP Image Sampling Calibrator to set DLSS sharpening to 65 and lock the render scale to 100%. RTSS monitoring confirmed the frame generation curve became a straight line with frame times at 13-16ms, while GPU-Z showed temps stable at 62-68℃.