Mihon has a setting to flash the display when changing pages to reduce ghosting on e-ink displays.

Which you shouldn’t use. E-ink refreshes are far more complex than simply flashing the screen a solid color, involving multiple steps to massage the e-ink in the panel into a sharp image. These are calculated and done by the e-ink display driver on any decent device, whenever the image on screen changes enough.

Mihon also does the flash out of sync with the actual display refresh (if it’s set to occur on tap), CAUSING ghosting, instead of reducing it.

If you can configure your e-ink device to do a full display refresh on tap, simply do that.

In Mihon, just disable animations, and let the e-ink display driver handle display refreshes.