Thanks for the info vodkat, that setting requirement makes sense since Cogmind doesn't use Direct3D or the GPU at all
Very interesting that downscaling actually helped you! I've never heard of anyone actually using that approach since it would generally make things more unreadable. Since that doesn't increase the number of rows on the screen, but you find it more readable, perhaps you should instead use your native resolution and switch to a different font, like Terminus? Or did you try that?
As per
this page linked from the System Requirements, you can't increase the font size beyond what your resolution supports, but that's not really what determines true cell size anyway--physical screen dimensions are what matters, so everything will be larger on a larger display.