A lot of responses are commenting about writing being fast. AFAIK, the slow part of eink displays was always effectively clearing them. Drawing is fast, and dra

A lot of responses are commenting about writing being fast. AFAIK, the slow part of eink displays was always effectively clearing them. Drawing is fast, and drawing without needing to clear anything, such as during writing, should be expected to be responsive. Many new systems don't do a full clear for every update, but that introduces more artifacts each time until a slow full clear is done. But the better displays now can get away with it without being distracting.