iPhone iPhone 6 problem with iOS 9

[Shaz12]

Ever since my update to iOS 9 my phone responsiveness has decreased.Scrolling is laggy and phone takes longer to open certain apps.Can anyone tell me whether anything can be done short of a restore ?

 

[Radon87000]

It's a known issue but some just can't see it.Nothing you can do I am afraid

 

[C DM]

Try resetting all settings. If that doesn't help try restoring as new to see if it behaves better.

 

[TitanTiger]

Ever since my update to iOS 9 my phone responsiveness has decreased.Scrolling is laggy and phone takes longer to open certain apps.Can anyone tell me whether anything can be done short of a restore ?

It's an issue some seem to be having and not others. Perhaps try the above suggestions or maybe get on the public beta. 9.1 beta 4 is working well for me.