Watch faces downloaded show a blank screen when starting to scroll up or down

I will also point out that even native watchfaces will stop animating (e.g. changing seconds) once you start scrolling. (This is very easy to see if you choose a watchface with seconds and scroll part way, leaving your finger pressed against the screen. The watchface, including seconds indicator will be frozen for as long as your finger stays on the screen.)

This suggests that a "screenshot" is taken of the watchface (*) and scrolled, as opposed to the watchface animating in real time while it's being it's being scrolled. This is presumably done for the most efficient and smooth scrolling experience possible.

(* or something to that effect.)

My point is that the same could be done for CIQ watchfaces, if efficiency and smoothness was a concern.

I did notice that on old watches (like Forerunner 935), when you scroll away from CIQ watchfaces they don't go black and the process is painfully slow. So it seems likely that this change was made deliberately to speed up scrolling. I just wonder if the same scrolling performance hack that was apparently applied to native watchfaces could also be applied to CIQ watchfaces.

I will also point out that even native watchfaces will stop animating (e.g. changing seconds) once you start scrolling. (This is very easy to see if you choose a watchface with seconds and scroll part way, leaving your finger pressed against the screen. The watchface, including seconds indicator will be frozen for as long as your finger stays on the screen.)

This suggests that a "screenshot" is taken of the watchface (*) and scrolled, as opposed to the watchface animating in real time while it's being it's being scrolled. This is presumably done for the most efficient and smooth scrolling experience possible.

(* or something to that effect.)

My point is that the same could be done for CIQ watchfaces, if efficiency and smoothness was a concern.

I did notice that on old watches (like Forerunner 935), when you scroll away from CIQ watchfaces they don't go black and the process is painfully slow. So it seems likely that this change was made deliberately to speed up scrolling. I just wonder if the same scrolling performance hack that was apparently applied to native watchfaces could also be applied to CIQ watchfaces.

Ya I already figured out this as well, the watch face doesn't stay active when scrolling, true. It is basically just a screenshot image all the face. But it makes the scrolling feel so much more natural.