I love my open-dyslexic font on my Kobo. I read a lot, usually many hours while in bed late at night. I don’t think the font helps with my reading speed at all, but I just feel like I have less fatigue and I have to reread words and sentences less often (I often mistakenly assume a word or few words and then get confused why the sentence made no sense).
Anyway, I just saw a demo of bionic reading and it feels weird and fast. I instantly was gonna pay for a font, but according to my research it doesn’t really work on Kobo. The fonts just left-weight letters, but the actual bolding for eye-focus points has to modify epubs themselves. I guess on the xteink x4 (which I was thinking about buying) you can put custom firmware on that supports render-time bionic reading, but Kobo doesn’t allow anything like that.
So before I buy anything or waste any time converting epubs, I was wondering if anyone had any experience with both, and which they prefer? I think theoretically I could modify an epub with bionic reading and use my open-dyslexic font at the same time… I guess there isn’t much research suggesting either help readers, and bionic reading doesn’t seem to have been tested for dyslexics specifically at all.
I might give it a try tonight either way. I’ll report back if I do.

Disclaimer: I don’t have dyslexia.
This was absolutely wild for me. I started reading the first few words at a normal speed then felt almost a compulsion to speed read the rest of the text. It was almost like I lost some control and my brain was forced to read it at hyper speed. I have no idea if this would help or hurt someone with dyslexia but it was definitely an interesting thing to experience. Thanks for posting this!
Lol my brain did this too - I think it realizes it can read faster with this text so… does.