On 2017-12-26 15:53, nospam wrote:
In article , harry newton
wrote:

There are very many posts where people complain incessantly that each
successive iOS release slows down their phone drastically.

the reason is because after a new ios upgrade, the system is rebuilding
caches, reindexing files, etc.

Almost every system upgrade of any operating system makes the machine
slower, simply because they have new features, they are bigger, use more
memory, and sometimes they run more default tasks on background. So it
is expected and normal that after an upgrade machines feel slower.
Drastically slower, no.

Sometimes they run faster because they managed to optimize things.

--
Cheers, Carlos.