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I prefer dark backgrounds. Reduced transparency gives me a white dock bar at the bottom. I'm on 8.2 so not sure if that has changed but it's hideous.
 
I updated to 9.0 on my iPhone 6 again and your trick actually did help. There is still some lag here and there but it does seem to be better. It's almost on par with 8.4.1, except I'm still seeing slight pauses here and there.

Good find!!!
 
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I updated to 9.0 on my iPhone 6 again and your trick actually did help. There is still some lag here and there but it does seem to be better. It's almost on par with 8.4.1, except I'm still seeing slight pauses here and there.

Good find!!!

That's awesome!
 
I prefer dark backgrounds. Reduced transparency gives me a white dock bar at the bottom. I'm on 8.2 so not sure if that has changed but it's hideous.

It still does that in 9.1 for better or worse. I have a medium background so it's not so bad for me.
 
I don't see how this would help, strange fix if true.

Still can't tempt me to update again though.
 
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Did it and it worked. The home screen blurring was completely messed up after this trick, so I had to do a restart. iPhone 6 Plus much smoother now. iPad Air 2 also seemed to benefit from this.
 
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Did it and it worked. The home screen blurring was completely messed up after this trick, so I had to do a restart. iPhone 6 Plus much smoother now. iPad Air 2 also seemed to benefit from this.

Glad it helped!

After doing this I had to restart my wife's 5s, because spotlight search was blurred. Her 5s is now running much smoother. I did it on my iPad Air 2as well. It was fast already, so it couldn't hurt!
 
Too scared to update... no idea when Apple will stop signing 8.4.1
Then don't update. Seriously, i don't see a reason to update the iphone, it will run slower than on 8.4.1 and there's no killer feature like on the Air 2 where you get side-by-side multitasking. :)
 
I don't see how this would help, strange fix if true.

Still can't tempt me to update again though.

It's actually better. Take it from me. I am one of the guys that started one of the lag threads. This definitely helps for some strange reason.
 
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Yup, it worked for me and SCJR and myself solved the lag issue. :)

Settings-General-Accesibility-Increase Contrast-Reduce Transparency

Super smooth again!!! Try it, it worked for my iPhone 6 Plus and my wife's. Both had major lag before.
Worked for me on 6 Plus.

IPad Air 1 did not have these issues.
 
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I've always noticed the lag on the 6+ from the beginning. Reduce Transparency always has helped bigtime. I never put on "reduce motion". It does not seem to help make it any better. Turning both on and then off did nothing more. On the 9.1 beta the 6+ is just fine with reduce transparency on as the only change
 
Did it cure all the stutters (animations, scrolling etc.) or only app switcher and spotlight search (swipe down)?
 
I prefer dark backgrounds. Reduced transparency gives me a white dock bar at the bottom. I'm on 8.2 so not sure if that has changed but it's hideous.

It does not look good when reduced but doesn't matter, you change it back and everything runs smooth and looks normal. Told a friend and it fixed their lag too!
 
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I downgraded to ios 8.4.1 yesterday and I wanted to try this with turning reduce motion and reduce transparency on, I just thought to give it a shot... and I restored my iphone and did clean install of ios 9 and it seems that it solved my problem. No more lagg or stutter. So, for those of you who did not do clean install maybe they should try this.
 
It helps with everything for me.

Same here. Plus Safari is tons better in iOS 9 and with no more jerky animations, happy days.

Jayson A commented earlier that it was much better for him as well and he vocal about the lag. I think it's worth a try to see if it helps
 
As an iOS software developer I cant really think of a way this fix works. But it does. Big thanks!!! (5s and 5)

That is so awesome!

I've reported this to Apple. Maybe others can report it as well.
 
Did not work for me. When I put settings back to "off", everything is the same.

Thanks anyway.
 
Didn't really help on my 5, but I did notice that after I turned the settings on an off, Spotlight blur was all messed up until I rebooted, making me believe there's a bug in the home screen blur thingy somewhere that nobody at Apple ever caught.
 
Can confirm it works, iPhone 5. Multitasking is now 30+ fps and I'm a PC gamer so I know my lag.
 
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Not much of a difference here on my iPhone 6. Control center still has that weird like slight 40-50fps stutter across the entire system that sort of irks me and scrolling past the home screen in the app switcher is still causing little issues. However spotlight now looks quite interesting.
 

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