It seems to me the problem with that font is that the strokes are way too thick, making the "m" look like it's almost all ink, and it also seems that the lowerc

It seems to me the problem with that font is that the strokes are way too thick, making the "m" look like it's almost all ink, and it also seems that the lowercase characters are far too tall for their width. If you use a normal stroke width (one that makes the empty space in the "m" as wide as the stroke) and width/height ratio for all characters, the problem naturally disappears, and in fact this is not a problem for instance in Linux terminals with the default fonts (normally DejaVu Sans Mono), where the characters look perfectly natural and fine.