Try using in landscape mode. That's the way I use mine. That should help.
Also, not to be rude, but are you in your early 40s? If so, that could have something to do with it. My vision changed a lot in my early 40s. Something to do with the muscles around the lens in the eye losing their ability to readily contract. This is why suddenly, at 40, we need reading glasses. I've noticed when I go from one "eye intensive" task to another, my eyes take forever to adjust.
And then, after the reading glasses, the rest of you falls apart.![]()
I have the same issue with my eyes not adjusting in a expeditious manner from one task to another. Does your use of reading glasses help this issue at all?
I hope your answer is yes. My eyes seem to be getting worse with this and need to investigate work arounds.
Gary