my monitor is an old Samsung it runs at 29hz and uses HDMI. This monitor was a hammy down from my grandparents so who knows how old it is I had a lot of issues trying to figure out what monitor it is I found no luck anywhere.
So your GPU is trying to drive one monitor at 29Hz and one at 165Hz? Lower hertz values can cause stuttering and tearing, especially if one is much higher than the other. Not the end of the world but tearing can occur much more frequently. Your CPU is no slouch and your PSU seems adequate. I know you marked this as solved but I think it's honestly your monitors.