I guess, we with N are more sensitive to various flickering lights. I have N and I can almost instantly tell if a PC monitor (not LCD but an older CRT) is using under 75Hz refresh frequency - one glimpse is enough. If I tell someone that the monitor is flickering he/she says - But I do not see that! And when I look at display properties - yes, there is default windows setting 60Hz because of wrong display drives or no drivers at all, so I usually set that to 75Hz (or higher if the monitor is capable of that) and - what a relief for my eyes
Although the owner of the monitor tells that he/she felt only small difference.