I recently got a second monitor and I'm experiencing annoying flickering whenever I'm watching a video. It doesn't matter if the video is on my primary or secondary display. They're both the same resolution (1440p), but my main monitor is 165hz while the second is 60hz.

I've read online that disabling hardware acceleration and then re enabling it fixes this. This temporarily works for me and the artifacts disappear. But whenever I restart my PC, the issue returns and I have to disable and re enable hardware acceleration every time. How do I fix this permanently??