But that should be far from "very" slow, it's really a fraction of a
second.
But it's actually the exact phenomenon I mentioned above. It has to do
with interfering animations and rendering of content interacting with
animations. 
Whenever iOS renders images on the screen and changes an image view,
scroll view scrolling gets interrupted. In this case the cause are the
two buttons appearing when you swipe left.
That should not be because the animation is supposed to run in a
separate thread at a higher priority, in former versions of iOS,
animation were actually holding up everything else, if you scrolled
extensively for a long time you would cause communication interruptions
and stuff, eventually even audio cutouts because literally nothing else
ever got executed. In iOS 7 that's no longer the case making animations
appear less fluent.

It's especially apparent in the tile-mode album views on iPad. When
iPeng loads covers in the background and then adds them to the view
while scrolling that didn't have any measurable impact under iOS 6, in
iOS 7, the scrolling animation gets very "jumpy".

The really bad thing is that there is little one can do about it (other
than maybe completely deferring any graphics changes until the animation
stops) because graphics need to be changed in the main thread and you
can't change the priority of that one.
Hopefully Apple tweaks a bit more here, after all, their own Apps are
affected as well, happy scrolling in the App Store App.....



---
learn more about iPeng, the iPhone and iPad remote for the Squeezebox
and
*New: Logitech UE Smart Radio* as well as iPeng Party, the free
Party-App, 
at penguinlovesmusic.com
------------------------------------------------------------------------
pippin's Profile: http://forums.slimdevices.com/member.php?userid=13777
View this thread: http://forums.slimdevices.com/showthread.php?t=51929

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