It’s the proper resolution.

Every character has a different shape, size and spacing. Telling O from A is hard. Splitting "thankyoufor" into words was a bit harder.

I can read it, but it’s harder/slower to read than something like this:

Dunno if Krita does support bitmap fonts. If you want to keep that handwritten look, you could cycle through 2 or 3 variants of the same character, although that again makes it a bit harder read probably because shape matching becomes slower.