Yup, sure enough, iPhone shutdown at ~18% (as it has for ages!) and when I
rebooted, I was told I was in battery performance management mode. For the
past few days the iPhone has been laggy and a pain to use. Turned that mode
off and it's buttery smooth again.
Hmmm, was it just PR about the
I am convinced that there is something very wrong with High Sierra 10.13.4
on my iMac (Retina 4K, 21.5-inch, Late 2015), and I have found many people
asking questions of Apple with no answers so far.
Following my previous problems with the Mac getting stuck on the start up
progress bar, I erased
