It comes to my surprise that iOS 7 is not even optimized for iPhone 5S

[hasanahmad]

Please cite where I said it breaks the OS.

Its a visual bug that should be fixed.

how do you know its not a feature

 

[Decimotox]

My thoughts are: you went and got the iPhone 5S just because you thought iOS 7 would be optimized for the A7 chip? Wow dude.

 

[WhoDatWayne]

I heard Apple released 7.0.1 update for the 5S and 5C. Go to settings > general > software update and check please.

I have 7.0.1 for my 5S.

 

[darngooddesign]

how do you know its not a feature

Because its inconsistent with how the rest of multitasking works.

 

[vasili0s]

Status bar is the top bit with carrier, time and battery.

Here is the feedback I sent to Apple so you can replicate the issue..[...]

good find. i too can replicate the bug 100% of the time on an i5.

 

[benji888]

In my opinion iOS 7 lost its smoothness and fluidity of previous iOS version because of some minor glitches and I dont mind living with them until there is a patch.
Overall I felt satisfied with what Apple provided in the 5S and hoped they will push out updates to optimize performance soon.

Seriously? I find iOS 7 on my iPhone 5 to be much more smooth and fluid over iOS 6! ...And as far as animations being slow, maybe you just need to reduce your caffeine intake. ...you have in your hand a computer that is 10X better than the average desktop computer people had 10 years ago. Slow down a bit, ok?