Copy this into the Web IDE flasher's URL box and give it a try: http://www.espruino.com/binaries/git/commits/cb1101a1855f3b37bdeb2b7a91af12d4aa45dc99/espruino_1v57_espruino_1r3.bin
I tweaked the IRQ priorities and at least for me, it's a mile better now.
@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.
Copy this into the Web IDE flasher's URL box and give it a try: http://www.espruino.com/binaries/git/commits/cb1101a1855f3b37bdeb2b7a91af12d4aa45dc99/espruino_1v57_espruino_1r3.bin
I tweaked the IRQ priorities and at least for me, it's a mile better now.