For pete’s sake, just let your server serve html. Replace only the parts of the page that need to update… with html. From your server. The poor thing is just sitting there, idling, bored, borderline depressed because it doesn’t get much of chance to do what it is meant to do, which is, you know… serve. “But it serves JSON” … is like buying a Bugatti Veyron, just to park it in your garage and use its exhaust fumes to dry your clothes 6 days of the week, with a 2 minute drive around the block on Sundays.