I have an ipad2 and an iPad mini. over the last couple of months Safari has started behaving very sluggish on both of them. It churns (small grew gear in upper left spins) and often the page has to reload, I get a message saying something like 'there was a problem with this page and it had to be reloaded'. Is this a known issue with older iPads? I hope not! I have iOS 8.1.3 on both iPads, and a 2year old airport extreme. Thanks!