I wasn't aware this problem was so widespread. I've only read one
article [on a apple fanboi site FWIW] that says it kicks in when available storage <3G (I've got >15G). I figured it was due to having only 1G of RAM which a browser can max out PDQ. Supposedly there's an app that can 'zero out' the memory which helps for a few months. Must look into that.
Forgot to add there's a definite hardware issue because whenever it slows down the back consistently gets really hot in an area near the lower center right in landscape mode (battery?).
EDITED: 29 Mar 2017 19:00 by DSMITHHFX