Thanks for letting us know. I've got a bug open to look at speeding up the Serial port handling (here) so hopefully this'll get fixed soon.
@Gordon started
Espruino is a JavaScript interpreter for low-power Microcontrollers. This site is both a support community for Espruino and a place to share what you are working on.
Thanks for letting us know. I've got a bug open to look at speeding up the Serial port handling (here) so hopefully this'll get fixed soon.