Thanks ajk. This thing that you represent in your superfrog animation on the right is what is happening to me. I wondered what this is and didnīt quite get it. I thought it was some sort of interlacing artifact but then it also happened in progressive resolution so I was a bit puzzled. Also wondered why I canīt see stuttering. This would explain it all.
This effect that slightly blurs the game character is actually sligtly distracting to me, it appears to be worst with Fury of the Furries game out of the games Iīve tried.
Definitely beats actually using 50Hz with a CRT though as that causes headache and eye pain to me