Does anyone read and comprehend better on a laptop screen than on a larger monitor?

I’m studying for the MCAT and I’ve noticed something strange. When I do reading-heavy sections (especially CARS) directly on my laptop, I seem to process information better and score higher. However, when I connect my laptop to a larger external monitor and read the same type of passages, my comprehension feels worse and I have a harder time retaining information.

Also doing reading the cars q pack which are not in real test format with the blue menu etc, I read faster and better on cars q pack rather than any aamc cars fl

Does anyone know or have this problem?