I heard this multiple times and I think this is most likely because the iPad2 does not have a retina screen. I heard from multiple persons with an iPad 3 aka t

I heard this multiple times and I think this is most likely because the iPad2 does not have a retina screen. I heard from multiple persons with an iPad 3 aka the first and therefore "weakest" iPad that uses a retina display that iOS7 does not result in a nice user experience when comparing it with the performance they had on iOS6. Talk about lots of lags and stuttering in the OS itself.