FWIW, I’ve discovered that, if you REALLY want “clean” text, follow dj-mindar’s suggestion - but DO NOT use distance field alpha. Choose the maximum size font, and you should get very sharp, clear fonts that do NOT take a half hour to build distance fields for - they reimport immediately, and with much better results, IMO.
If you care more about render speed, then stick with the distance field alpha; if you care more about clean text, turn it off.