before i reverted back to 10.2.1, iphone 7 plus booted faster, gained a lot of free space (no it wasnt the temp cleaning of "other" data, stop saying that), single core score was quite a bit higher, multi core score was quite a bit higher.
i only reverted cause it breaks apps:
steam (doesnt log in if u log out)
esports (instant crash)
skype (doesnt go "online")
and probably many others out there..