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I've never had any issues as far as speed of opening things or responsiveness. What I have seen since 8.0 on my iPhone 6 Plus (and many other models, but particularly the Plus) is the low frame rate that animations run at. Especially compared to something like the iPhone 5 or 6 that have less pixels to push. This is noticeable in the control center, spotlight pull down, rotating the screen with spotlight open (stupid slow frame rate), quick reply, and sometimes the app switcher.

This is completely negated by turning on reduce transparency since it doesn't have to render as much but this makes iOS look quite ugly and it shouldn't have to be dumbed down to make it perform like it should.

It hasn't always been like this either, my iPhone 4s ran iOS 7.1 perfectly smooth and it had significantly less power. This is also noticeable on the iPhone 6s and 6s Plus as pointed out by Erica Griffin here (watch in 60fps). Shouldn't be an issue.

That being said, upgrading to iOS 9.2 hasn't changed my 6 Plus at all from what I can tell. Still drops frames where it has for the last year. It's no iPhone 4 on iOS 7, but still.

Quick reply is one area where to me its improved. But overall I feel like apple released the 6 Plus knowing it was under powered. Truth is the masses that buy these phones dont give a crap.
 
Wish I hadn't updated.
iPad Air 2 and iPhone 6 has both seen negative change.
Including odd battery behaviour.
 
iPhone 6 Plus user here, I definitely see improved smoothness in app switcher. I don't know about other animations but that alone is huge to me. Very satisfied. Keep it up Apple!
 
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I am happy to report that everything is better. Multitasking is WAY smoother when you initially start it, app launching is faster as well. Good job apple, it looks like they really are improving. This is on 6 Plus.
 
I'm happy to report that the stutter in app switcher is finally gone on iPhone 5. Even with many open apps, where it stuttered like crazy before. Didn't expect that, nice. I can finally re-enable transparency again.

EDIT: GUI is smoother on Air 2 too. Not completely smooth as on the old iPhone 5 but getting there and definitely much better than 9.1.
 
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I am happy to report that everything is better. Multitasking is WAY smoother when you initially start it, app launching is faster as well. Good job apple, it looks like they really are improving. This is on 6 Plus.

Awesome! Progress is good! :)
 
I'm happy to report that the stutter in app switcher is finally gone on iPhone 5. Even with many open apps, where it stuttered like crazy before. Didn't expect that, nice. I can finally re-enable transparency again.
Funny , we started our sentences the same way : )
 
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My old iPhone 5 is now perfect 60FPS. Stutter is completely gone from app switcher, even with transparency enabled. See this 60FPS video (it does play 60fps in YouTube app):
 
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So far I'm experiencing more lag and stutter on my iPhone 6 since updating to 9.2 beta. I have not set up as new yet, however. How do you guys do that over and over? It's not too bad on my ipad because I don't keep a ton of apps on there, but I really don't want to have to constantly reorganize all my folders on my phone...
 
People are delusional. You shouldn't ever need to set up as new. I've been carrying over the same backup since iPhone OS 2 - through many developer betas, and many different phones, all without issue.
 
People are delusional. You shouldn't ever need to set up as new. I've been carrying over the same backup since iPhone OS 2 - through many developer betas, and many different phones, all without issue.
So that means the same thing applies to everyone? Not sure where the delusion lies there.
 
People are delusional. You shouldn't ever need to set up as new. I've been carrying over the same backup since iPhone OS 2 - through many developer betas, and many different phones, all without issue.
It's an easy self rationalizing excuse for not having to deal with reality.
 
The way iOS is designed, there is little chance that restoring as new actually fixes anything. Apps are all sandboxes and you don't have root access so you can't break anything. The backup is a collection of .plist files with settings and application data. Not much really going on here there, and definitely not much going on that can have a significant impact on performance.
 
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The way iOS is designed, there is little chance that restoring as new actually fixes anything. Apps are all sandboxes and you don't have root access so you can't break anything. The backup is a collection of .plist files with settings and application data. Not much really going on here there, and definitely not much going on that can have a significant impact on performance.
Apparently enough that various people with various issues see enough of a difference at times when they simply reset all settings, let alone restore.
 
That's what your statement is saying if you say that no one should ever need to do this or that.

What? No it's not.
No one should ever have to change their shingles on a 2 month old house. Does that mean it NEVER happens?
No one should have to get new brake pads 3 months into owning a brand new car. But I'm sure that has happened as well.
Sometimes things go wrong (ask your parents ;)).
In my opinion, it would be pretty ridiculous for people to replace their entire roof after every wind storm where a shingle was dog-eared, or replace their brake pads every time they felt some shimmy.
Restoring from new with every single update, or at the first sign of any issue is ridiculous, and SHOULD never need to happen.
 
What? No it's not.
No one should ever have to change their shingles on a 2 month old house. Does that mean it NEVER happens?
No one should have to get new brake pads 3 months into owning a brand new car. But I'm sure that has happened as well.
Sometimes things go wrong (ask your parents ;)).
In my opinion, it would be pretty ridiculous for people to replace their entire roof after every wind storm where a shingle was dog-eared, or replace their brake pads every time they felt some shimmy.
Restoring from new with every single update, or at the first sign of any issue is ridiculous, and SHOULD never need to happen.
Comparing physical and mechanical to the world of computers where resetting and reinstalling has been a known and accepted norm for many years. (By the way the comment that was made wasn't about doing it with every single update or at any sign of an issue, but that no one should ever need to do it at all.) Talk about something going wrong somewhere with that kind of rationale. And since we degraded to (and really started with) childish commentary it seems that the argument has already been undermined anyway.
 
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Placebo in 90% of the cases.
Other people would surely know better what it is for others, right? And even with such an unrealistic take on it, apparently for 10% it does something, meaning that it can actually do something for quite a few people.
 
apparently for 10% it does something, meaning that it can actually do something for quite a few people

90% of a lot is quite of few more than 10% of the same lot. But being that this "lot of people" is a quite bit more than a quite a few people, you are technically correct. I apologize for going off topic as this is not a math or statistics forum, lol.
 
90% of a lot is quite of few more than 10% of the same lot. But being that this "lot of people" is a quite bit more than a quite a few people, you are technically correct. I apologize for going off topic as this is not a math or statistics forum, lol.
Yup, 10% of the hundreds of millions is A lot. And again, that's simply if the made up statistic was entertained for the fun it it all.
 
Based on my experience on iPhone 6 Plus, iOS 9.2 is smoother than 9.0.* releases, yet it's still not on par with 8.4.1.
 
9.2 running nicely on 6s. Control and Notification Center are smoother. Still getting weird camera glitches where it takes a second or so to actually open up ready for a pic
 
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