I was thinking in general terms, not for this specific module. I'm building a remote display that connects to the serial port. The empeg probably does update faster than 10 times a second but only the animation. I can't think of anything in the normal UI that changes faster than the track time once per second. And 10 CPS was a worst-case, brute-force estimate. Only sending the changed portion of the display would be faster. Just try the VNC software over a modem.
Yeah, 1,024. I was adding bits: 7+5+2-3 = 11 instead of 7+5+1-3 = 10.