Partial screen update ?

[nixxou]

I'm wondering why the Display update all pages of the screen when using display() ?
Maybe i'm totally wrong, but could all the function that write stuff to buffer could not, alongside the buffer, update a buffer with an array of page and a counter, and on display(), if the counter is bellow a threshold, individually update the buffered page instead of the whole buffer ? Or maybe this was already tested and it's quicker to send one big command that many small one ?