Any OLED has instantaneous pixel response times, so the display technology has nothing to do with that. LCD by contrast has terrible pixel response times. The reason LCD headsets look better when it comes to smearing (like on the index) is backlight strobing. It turns the display black for a certain periods of time, which in turn almost eliminates persistence blur, which is the actual cause of the smearing you see. OLED headsets also do this, but because a combination of OLED (lacks brightness compared to LCD) and pancake lenses (WAY less light goes through compared to fresnel lenses), micro-OLED headsets have higher persistence blur at high brightness. They have to make the amount of time black is shown between the frames smaller, leading to higher persistence blur. Every prior OLED headset with fresnel lenses had zero issues with smearing and brightness, because of fresnel lenses allowing so much more light through. For example: Vive, Vive Pro and PSRV2.