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The lowest I can tolerate after going to 144hz is around 90 or so. 60 just feels so wrong now
Another drastic improvement for me is GSYNC, with VSYNC off, even 60fps looks a lot better.
When I bought my monitor it was in the gsync category, but apparently it doesn't actually support it :/ I really should hit up their support and ask them about that
Try going into Nvidia Control Panel and then the Set up GSYNC option, enable GSYNC compatible.