Hello everyone ! I Purchase Apple IPad Air 32 gb , wifi + 4g Lte in June 2014 .I must candidly confess that I truly witnessed the extreme quality of the product . It was delectably smooth and fast without any lag .It was more than awesome .... I Very recently upgraded my iOS to iOS 8 . Fun flew away and regret has darted in . I really regret for having upgraded to iOS 8 . Imagining an Apple device "LAGGING" is actually unimaginable and this is what is happening with my device . It is lagging and has become slow at most of the times . Some of of the problems I face are as follows : 1. Sometimes , when I unlock my device , the screen is never displayed . It remains black (locked) . I will have to press the unlock button several times to unlock it . 2. The splitting of keyboard in to two for the ease of typing causes lag in the device . 3. YouTube app has become terribly slow . I have 25 mbps internet speed , but still videos buffer in my YouTube app . This never happened in iOS 7 . I feel that the wifi capacity of my device has turned slow as I experience this while browsing too ... 4.When I select " define " which appears on Constantly holding a word , it takes at least 10 seconds to define a word . But in iOS 7 , it could define my desired word instantaneously. THere are a lot more . I am not complaining about IOS 8 or Apple deivce, but I just want to tell that I feel IOS 8 isn't suiting my device . I am not able to explore the full efficiency of my device after upgrading it . I know that Apple has stopped signing IOS 7 . But still , I feel that I cannot do without IOS 7 . I use my ipad a lot for educational purpose and the lag is terribly frustrating. So, I hereby kindly request the concerned authority to please help me downgrade my iPad to iOS 7 .