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I'm not experiencing either of those issues on my 6+. In fact quite the opposite. My battery life is awesome, and aside from the appswitcher and occasionally when I unlock the phone, everything is super smooth now.

I also have blank icons in Updates.
 

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So frustrating. Seems to be hit and miss if music stops playing for me as well. Hopefully it'll be cleaned up for release.

I'm experiencing this, even when using headphones! It's so frustrating... At least my headphones have a play/pause button I can hit (and I've got an Apple Watch, so that works too). It took me a while last night to figure out why my music kept quitting on me when I was doing dishes in the kitchen... I've had similar issues with AirPlay from YouTube in the past; I'd have to keep the touching the screen to keep it from auto locking.

Device: iPhone 6S
OS: iOS 9.1 Beta 4 (Public Profile)
 
This is the first beta update where my 6 is laggy. This has been the most buggy as well.

I have two observations. Has anyone noticed that the artist information is gone from the New page in Apple Music?

Also does anyone have a card in Wallet where two different set of card numbers overlap each other? One is the end of my card number, the other is not.

Yes to one of your points, the artist information is missing on mine too. Quite annoying.
 
Okay, my issues with 9.1 Beta 4 and 9.0.2, as is makes almost no difference. The only thing that is fixed in 9.1 is Recent Calls (Phone.app) scrolling animation, it's smooth again.

iPhone 6

• Stuttering Control Center
• Stuttering scrolling in apps (Twitter, Tapatalk etc.)
• Stuttering Spotlight search (swipe down)
• Somewhat low FPS scrolling between homescreens
• Occasionally low FPS in multitasking menu, when switching between apps
• Restrictions on Apple Music, iTunes etc, that disable explicit content will turn on automatically whenever they want. For example: after reboot, after changing App Store account or just after few hours.

iPad Air (in addition to issues listed above)

• Some apps are worse on 9.1 than 9.0.2
• Multitasking switcher is absolutely awful, I am getting less than 30FPS while scrolling, switching apps
• When you're in Safari and you tap on address bar to type an address, keyboard sometimes just jumps from nowhere to the screen (missing animation) or is very choppy
• Overall experience feels unresponsive.

Though, I can say that finger gestures are much easier to trigger.

I have tried setting up as new both devices, numerous times. Updating from 9.0.2 to 9.1, restoring from backup. Thus, I figured that this isn't my device's fault. The problem is with Metal. I have an older iPhone 5 and there is not a single issue that I have listed above.
 
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Okay, my issues with 9.1 Beta 4 and 9.0.2, as is makes almost no difference. The only thing that is fixed in 9.1 is Recent Calls (Phone.app) scrolling animation, it's smooth again.

iPhone 6

• Stuttering Control Center
• Stuttering scrolling in apps (Twitter, Tapatalk etc.)
• Stuttering Spotlight search (swipe down)
• Somewhat low FPS scrolling between homescreens
• Occasionally low FPS in multitasking menu, when switching between apps
• Restrictions on Apple Music, iTunes etc, that disable explicit content will turn on automatically whenever they want. For example: after reboot, after changing App Store account or just after few hours.

iPad Air (in addition to issues listed above)

• Some apps are worse on 9.1 than 9.0.2
• Multitasking switcher is absolutely awful, I am getting less than 30FPS while scrolling, switching apps
• When you're in Safari and you tap on address bar to type an address, keyboard sometimes just jumps from nowhere to the screen (missing animation) or is very choppy
• Overall experience feels unresponsive.

Though, I can say that finger gestures are much easier to trigger.

I have tried setting up as new both devices, numerous times. Updating from 9.0.2 to 9.1, restoring from backup. Thus, I figured that this isn't my device's fault. The problem is with Metal. I have an older iPhone 5 and there is not a single issue that I have listed above.
people who tell you to restore are full of ****. Its a software bug that cant be fixed until apple fixes it. Hopefully in the next beta (Beta 5) they will address the animations. Even their newest feature, 3D Touch has framedrops.
 
people who tell you to restore are full of ****. Its a software bug that cant be fixed until apple fixes it. Hopefully in the next beta (Beta 5) they will address the animations. Even their newest feature, 3D Touch has framedrops.
It depends on the issues. Some can't be fixed, some just might be, depending on what's being observed and to what degree.
 
Say you are in an app and you hit home. The animation starts. In 8.4.1 and below I can be tapping on the next icon I want to open from the springboard and iOS knows it mid-animation and when the animation ends it immediately begins opening that next app. I love it. It's fast feels great.

In iOS 9 you have to wait till the animation is completely over before it registers your tap! So I'm sitting there tap tap tapping away at least 3-5 taps before things get moving again! It was jarring and it was the first thing I noticed in iOS 9 and it just feels clunky and weird.

Sure once things finally open performance is similar with iOS 8 but it's all about the fluidity and it just isn't there in iOS 9 yet. If this ever changes I'll be on board. Until then my 6 will stay on 8.4.1.

Is it still like this in beta 4?
Wow you can tap 3-5 times in 1/2 a second? Man you are FAST! They will probably have to add telepathy to the next version of iOS so it can read your mind and open the next app you are thinking about.
 
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Okay, my issues with 9.1 Beta 4 and 9.0.2, as is makes almost no difference. The only thing that is fixed in 9.1 is Recent Calls (Phone.app) scrolling animation, it's smooth again.

iPhone 6

• Stuttering Control Center
• Stuttering scrolling in apps (Twitter, Tapatalk etc.)
• Stuttering Spotlight search (swipe down)
• Somewhat low FPS scrolling between homescreens
• Occasionally low FPS in multitasking menu, when switching between apps
• Restrictions on Apple Music, iTunes etc, that disable explicit content will turn on automatically whenever they want. For example: after reboot, after changing App Store account or just after few hours.

I don't get it. I don't notice any issues like this on my iPhone 6, with the exception that pulling down spotlight can be a little choppy (even on the iPhone 6s - it appears to be particularly poorly optimized). I've always considered myself fairly sensitive to poor performance, but iOS 9.0.2 runs great on my iPhone 6; I really have no complaints.

Either there is for some reason a huge difference in performance across what should be identical hardware, or some people are incredibly sensitive to the tiniest drop below 60 fps.

I would love to see some videos shot at 60 fps of all the slow performance areas people are complaining about, so we can try to get an objective assessment of what's going on.
 
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It depends on the issues. Some can't be fixed, some just might be, depending on what's being observed and to what degree.
I don't get it. I don't notice any issues like this on my iPhone 6, with the exception that pulling down spotlight can be a little choppy (even on the iPhone 6s - it appears to be particularly poorly optimized). I've always considered myself fairly sensitive to poor performance, but iOS 9.0.2 runs great on my iPhone 6; I really have no complaints.

Either there is for some reason a huge difference in performance across what should be identical hardware, or some people are incredibly sensitive to the tiniest drop below 60 fps.

I would love to see some videos shot at 60 fps of all the slow performance areas people are complaining about, so we can try to get an objective assessment of what's going on.
here is a 60 FPS video of someone who claims there is no lag and says everything is smooth.
SPOILER ALERT: Its a lagfest
 
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Sometimes my iphone 6s gets hot ..!!!

Anyone having same problem.!!!!
wow. calm down.

has anyone else encountered the message in the screenshoy above? it's strange because it doesn't do it for all my videos. also i'm downloading originals not optimizing.
 
Can you provide a video to prove otherwise?
I don't spend time digging around for anecdotal videos that won't prove anything to anyone anyway. This isn't something that's going to change anyone's mind. The reality is that people have different experiences, and those that believe that that's not the case, and it's all either one extreme or the other extreme don't want to face the simple reality, and no amount of videos will change that for them as they will find whatever it is that they want in those videos to support their point (even though whether or not they find something it still doesn't mean that it applies to everyone or even most anyway).

If you want something that comes closer to a somewhat more objective take on it (even though there still isn't a fully objective take that would apply to everyone anyway) based on a more thorough and general overview of it all, http://arstechnica.com/apple/2015/09/ios-9-thoroughly-reviewed/ should do a fairly good job.
 
here is a 60 FPS video of someone who claims there is no lag and says everything is smooth.
SPOILER ALERT: Its a lagfest
To be fair, that looks like it was iOS 9.1 beta 1, as the video was uploaded on September 10th. Also, since the iPad mini he was using didn't have Touch ID, it could have very well been the 1st gen (the one that came out in 2012) which basically had identical specs to the iPad 2. He didn't specify.

EDIT: Yep, looks like he was using the 1st gen iPad mini, as he pointed out that there was no new Spotlight screen. This was one of the features that was cut from iOS 9 in A5 devices.
 
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Yup, one experience of a random person totally proves something. Totally.

I find it funny that the guy says stuff like "I'm not seeing any lag, it's very fluid" and I can see stuttering in almost everything he touches. I think that people who claim there is no lag, just aren't sensitive to it so they completely over look it.

Also, did you know that some people can't even see screen tearing in video games when v-sync is off? I find that remarkable because I can see even the slightest hint of screen tearing when it occurs. It really bothers me, but some people are blind to it. It's amazing how different humans can be.
 
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