Are you using third party sync cables??
Received my Air 2 yesterday and loving it
such a relief coming from using the iPad 3.
But upon setting up my new gadget my glee started to sour a little.
*Bear with me* You see the thing is I jailbroke it straight out of the box and everything was going okay until I started to use the thing (no JB tweaks installed) but I noticed swiping and scrolling the springboard and safari was very sluggish and occasionally locking up
At this point I could only put it down to two things either the Pangu JB buggered things up or the syncing of my many apps was putting a little strain on the iPad, but then I thought to myself...what the heck! this thing is meant to scream performance with its 2gb ram and whatnot
surely it can't be that..
So I left it syncing a little longer, came back and tried playing around with it again but the same glitchy problems occurred...safari tabs refreshing, freezing, keyboard not very responsive... by this time I was weighing up my options whether to restore to 8.1.1 or return my iPad.
Then I did one simple thing, unplugged the iPad from sync/charge cable...and bam! the iPad sprang to life... snappy! fast scrolling! no safari tab refresh! no freezing on the springboard etc... everything was working as it should...
I couldn't believe it.
So with my small analysis its clear the problem was the third party cable, the same one I use to charge my iPhone 6
and just to be sure I did a few more test and every time I connected the unofficial cable it would react the same way. Not sure why this happens, but I suspect its something to do with the chips in the 3rd party cables (this particular one I bought on Amazon) as I like to have a couple spares one for the office, car etc... but if these small cables can mess with an iPad like that, then what might it be doing to my iPhone
anyway I hope this insight has helped some of you with issues you may be facing with your new iPad Air 2 but YMMV