I am not arguing against the existence of such an effect. I am loathe to state that the cause is that your eyes see more images per second on screen. I am not c

I am not arguing against the existence of such an effect. I am loathe to state that the cause is that your eyes see more images per second on screen. I am not convinced that a higher framerate improves perception of the image content when over ~50Hz. I'm rather suspecting that the traditional coupling of game simulation and input processing rates to screen refresh rate is the cause: games seem more responsive because input sampling is more precise when the game loop runs faster.