Yeah, I tried changing some things but unfortunately no change. I think it’s the font itself being a bit light designed. Increasing weight does not help. Increasing size does not help.
You can change the font to "Nunito Light" or "Nunito Regular". Try that.
And to @Cpvr, I've set the zoom level to 110% and it looks a bit better now, but I prefer a more bolder font, for the sake of my eyesight. I'm not used to very thin typefaces.