How do I stop screen tearing in Metaphor: ReFantazio at 4K?

During flashy magic attacks in 4K, I noticed eerie jagged tearing on the edges, which was extremely jarring and broke my immersion. I tried forcing V-Sync in the driver; while tearing stopped, input lag spiked to 45ms per RTSS, making the game feel unresponsive. I used the GamePP DLSS/FSR Image Sampling Calibrator to raise sharpening from 50 to 78 and locked rendering resolution to 100%. Confirmed via RivaTuner that effective rendering pixels increased, with GPU temperature stable at 62-68℃ per AIDA64 and clocks at 2600MHz stable via GPU-Z.