Difficulties in reading the font

I have this issue since FM2013, but I can't quite remember how I resolved it. Basically, the font is too difficult to read. Size wise, I've managed to edit the language file, but changing the font doesn't have any impact.

https://fmshots.com/bk/wLjR2QJ.jpg

did you fix it? because i have the same problem! please help me if u can!