Just one "for sure" way: don't use dynamic fonts. There are many issues with dynamic fonts which led to me quietly abandoning feature developments related to using dynamic fonts.
If you absolutely have to use dynamic fonts, be sure to not use the "crisp" setting on labels, and stick to labels using the same size fonts. Ie: if you have 10 labels and they all use a different font size, then you are effectively having to cram 10 times more data into the font's textures.