Independent refresh of certain elements

As far as I know, KWGT's one second refresh mode (Fast) consumes so much power and isn't recommended due to it refreshing everything on screen, causing unnecessary API calls and redraws. Would it be possible to add an option where certain elements (say, a time elapsed text) can be updated at a faster rate than others, and/or a slower rate to only update when, say, a song change is detected in the case of album art?