This is a case for their being two slide decks. Or rather, that slides can be used as a shareable graphic-heavy document OR as an aid to giving a talk, but the same deck can’t be good at both purposes at the same time.
If you have to serve both uses, text goes on the slides. If you’re primarily speaking then just include the speaker notes and hope it makes sense. If the slides will be shared primarily, text goes on the slides and you just deal with it while presenting.
Slide decks have a "NOTES" view.
Put pretty pictures in the REAL view.
Share it and they will read the NOTES view.
Duh.