Ugh, I'm afraid it's the screen that's the problem. The mexes are perfectly visible for me here and I don't even have that good of a monitor considering I opted for a fast nanoIPS. It really sounds like the issue here is the not the best quality of the laptop screen.
For example, when I switch this image to my secondary "office" quality screen the mexes do become harder to see, especially at lower brightness. And I bet OLED screen would just make everything extra crispy considering my experience with them.
So yeah, this really is a screen issue. The question is how can you deal with it when it's clearly a specific hardware issue.