The animation and lag issues are completely different. Nothing helps the animation issue as of yet, but the lag that some people are experiencing is definitely helped by Reset All Settings. Not to be confused with Restoring your phone. In the case of Reset All Settings no information is deleted and all settings are returned to factory default. This is a great fix for most of the issues people experience when restoring to a new device.
I mistook reset all settings as erase all content and settings, my bad on that. Not that big of a deal to reset settings.
Also, if you read my entire post I clearly state that nothing fixes the animation glitch....not sure why you're pointing it out to me. This thread is about animation issues, not lag. Not sure why people are bringing general OS lag into this discussion...it will only confuse people coming to the thread.