Mirco, I think the bubble itself appearing immediately should make it obvious enough that the system is responsive. If it turns out not to be, then we can consider animating the transition from old to new value, instead of just flipping them after half a second.
Mirco, I think the bubble itself appearing immediately should make it obvious enough that the system is responsive. If it turns out not to be, then we can consider animating the transition from old to new value, instead of just flipping them after half a second.