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That's weird. I've the same iPhone and it's working better than before.
Remember, Spotlight may be indexing your device and it takes a time (one hour, I guess).
Meanwhile, don't install apps.
 
The only problem I've encountered with iOS9 is that my battery behaves normal everywhere else, and low power mode is a super solution - but - when using video on skype it goes from 95% battery to 15% battery in 6 minutes. Obviously, that's wrong. If I then open something like iMessage, it just goes black and wants me to charge (charging it for 30 seconds and it says 89% left..) if I stop using Skype video it will operate just fine the rest of the day and it will take hours before it even gets close to 20% But iMsg and Skype for some reason cause the device to think its dead on the battery.
 
The only problem I've encountered with iOS9 is that my battery behaves normal everywhere else, and low power mode is a super solution - but - when using video on skype it goes from 95% battery to 15% battery in 6 minutes. Obviously, that's wrong. If I then open something like iMessage, it just goes black and wants me to charge (charging it for 30 seconds and it says 89% left..) if I stop using Skype video it will operate just fine the rest of the day and it will take hours before it even gets close to 20% But iMsg and Skype for some reason cause the device to think its dead on the battery.

Not a solution but somebody told me... don't use facebook or skype on iPhone. And it works, at least. Battery life is increased.
 
Not a solution but somebody told me... don't use facebook or skype on iPhone. And it works, at least. Battery life is increased.
I am comparing how it was before I upgraded to iOS9 vs after. Normally I can easily get hours of video out of FaceTime / Skype and just having iMessage open doesn't even touch single % of battery. The iOS9 on iPhone 5s for me changed that to 'dead in under 15 minutes'. But the battery isn't actually empty, plug it in to change and it shows how much is actually left. The iPad with iOS9 and 9.1 beta doesn't have this issue whatsoever and works the same as in iOS8.
I only have Skype for 2 reasons, there's no alternative, and Android users don't have FaceTime.
it's the only terrible experience i now have with iPhone 5s, and I think it's because of iOS9, not sure how to fix it.
 
The only problem I have on my 5s is that I can't make FaceTime calls. I'll open the app select a contact it acts like it's going to make a call then just go back to my contacts.
 
The only problem I have on my 5s is that I can't make FaceTime calls. I'll open the app select a contact it acts like it's going to make a call then just go back to my contacts.
When I first installed iOS 9 I had similar problems, iMessage wasn't activating I went in and reset the network settings, stayed off wifi went in and re-enabled it in FaceTime first then in iMessage and now all is fine
 
That's weird. I've the same iPhone and it's working better than before.
Remember, Spotlight may be indexing your device and it takes a time (one hour, I guess).
Meanwhile, don't install apps.
I let my phone sit over night on a fresh install before I added any apps or photos, or music. So I know it had to be done indexing, idk it seems like it's just affecting certain people I solved this "temporarily" by disabling Siri spotlight suggestions
 
Lag is apparent on iOS 9 on all devices except the iPhone 5/5c and iPad Air 2. Don't fret.

iOS 9 is a terrible release. Downgrading is still possible, so try it out if lag drives you crazy. I had to downgrade to 8.4.1 on my 5s because of the lag.
 
Lag is apparent on iOS 9 on all devices except the iPhone 5/5c and iPad Air 2. Don't fret.

iOS 9 is a terrible release. Downgrading is still possible, so try it out if lag drives you crazy. I had to downgrade to 8.4.1 on my 5s because of the lag.
I found disabling the Siri spotlight suggestions fixed all the lag other then the shutter crap with the app switcher. Might give it s try, to me that boiled it down to mainly being the spotlight is bugged out, could be wrong tho
 
I found disabling the Siri spotlight suggestions fixed all the lag other then the shutter crap with the app switcher. Might give it s try, to me that boiled it down to mainly being the spotlight is bugged out, could be wrong tho

More people need to try the fix we posted.
Got lag on your iPhone 6 Plus with iOS9? Try this, fixed it for me. Go into settings and turn on "Reduce Transparency"
Settings->General->Accesibility->Increase Contrast-Reduce Transparency.
iPhone should be quick now. Then go back in and turn it off again. No more lag!
 
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More people need to try the fix we posted.
Got lag on your iPhone 6 Plus with iOS9? Try this, fixed it for me. Go into settings and turn on "Reduce Transparency"
Settings->General->Accesibility->Increase Contrast-Reduce Transparency.
iPhone should be quick now. Then go back in and turn it off again. No more lag!
I tried this it didn't work :"( the only thing that helps is disabling spotlight
 
But see this is my point, we shouldn't have to downgrade anything, I'm not trying to sound like a jerk, but they had to of known of this, why push the software out like this? Lately Apple is doing nothing besides giving there self a bad name
Agreed sorry but cook doesn't know what he is doing.
 
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I'm not experiencing any lag on my 5s with iOS 9. Very similar to 8.4.1. Battery life is good.
 
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I checked out some 5S' at Apple Store, and noticed some choppiness in animation, especially in app switcher, spotlight search and exiting app. However, when within the apps (at least for standard iOS apps like Notes, Safari, etc), everything seemed quite smooth. Typing and scrolling did not cause any lag/stutter. I spent some time using apps like Notes, Safari, Calendar, etc. The phone did fine with all the tasks I threw... Scrolling in Safari was smooth, even on websites filled with large images and GIFs.

I did notice lag when opening apps as some forum members have noted. But it was almost a millisecond difference between iOS 9 and 8.4.1. Opening apps is definitely not as snappy as on 8.4.1, but the lag seemed negligible.

There were total of three 5S' at the store. The choppy behaviors were the same on all three phones. I was actually hoping to see at least one of them perform better than the others since some members on this forum have flawlessly working iOS 9 on 5S.

I'll keep 8.4.1 for now. I'll keep an eye on future updates to see if animations are smoothened out.
 
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