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I am also having a subpar experience (Check the lag threads) but we are stuck with iOS 9 as Apple stopped signing iOS 8.4.1 :(
 
Yep, you're basically stuck.

I immediately downgraded from iOS 9 the same day it came out because of performance issues, and I do not regret it one bit. :p
 
What is your horrid experience about? IOS9 has been fine for many of us, and since you can't go back, let's find ways to improve what you've got.

I've had a horrid experience so far with iOS 9 on my device. Is there any way I can revert back to my old OS? I haven't been able to figure out. Please someone help!
 
When you are letting us know about what is happening to you - please include how many applications you are running simultaneously and how many tabs are open in browser at same time etc. What is your device, etc.
 
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