I updated 55ec930v and no speed improvement what so ever. Now if chromecast gets a signal tv does not change input automatically, same with beta version. I was expecting improvement in speed but menu is still very slow. I hope LG still make improvements and publish better optimated firmwate. This is not even close webos 2.0. Not happy.
EDIT# Chromecast simplink systems started to work, Factiry reset took simplink option off By default. So no problems whatsoever, but still slow UI.