Since Volsung pointed out the blur on text, it became obvious (distracting, even) to me as well.

So I removed this effect from the CC3 map, exported it again and honed my skills at smudge & blur in GIMP once more.

I still need some practice to it but it looks better this time (I might be the only one to see any difference, but please do not shatter my dreams ).

I did some anti-aliasing in GIMP as well (thanks for the translation Midgard, I am still quite new to all of this).