well idk how to implement this but comment if you find a way :)
I read about this quite some time ago. Seems like they found out, that this doesn't really make a difference in reading speed or comprehension. "Byonic reading" is basically just homeopathy for formating texts.
Posts like the one in the picture works for various other reasons - just not because of formatting. They are advertisements, as "bionic reading" is a proprietary solution.
Sorry to be the party pooper.