Well I would assume less powerful ones should take up less power. Also, don’t normal LED displays also require this, or sometimes more computation to calculate the pixels?

afaik it’s very possible to make e-inks with 20+fps, but the microcontroller used to power the display isn’t powerful enough. I’ll link the yt vid if I can find it.

found it: https://youtu.be/nHbA2-_qzH4

it’s a 60 fps colour e-ink display