This has been informative because I still have a couple of problems on this site despite using Chrome (I gave up on I.E. long ago). I've just disabled the two extensions I have & I'll see if things improve.
But I think threads such as this might be better posted on the Help & Support forum ?
Something else Chrome related for live chess is that if you have uTorrent or BitTorrent as an addon it can prevent you from making moves in your game.
Good news is though that if you disable it even during a game you can then make moves without needing to refresh or restart the browser.