Why does iphone 4s lag??

Hey, I have the same problem. When I first got my 64gb iPhone 4s, I went through some benchmarks, I've tried Pi calculator at 32000 digits and I get around 4.62 seconds. Now when I try it I get 5.27 seconds with no apps running either. I've also notice some lag in games such as GTA 3,Real racing 2, and all the high graphic games. I would not expect lag as it's 7x faster GPU than the iPhone 4 and it has the best GPU for a smartphone on the market, but I've never tried a comparison between another iPhone 4s so I don't know for sure. This has been driving me nuts for the past few weeks as I don't want my phone to get slower overtime.... Especially if I payed for something so expensive. If I may ask does your app store take longer to load each time you click on the app review? Mine is slower by a few secs than my brothers iPhone 4!!! I'm curious if anybody else with iPhone 4s has this problem. Also my wifi signal seems weaker at times... I'm starting to regret the iPhone 4s and should've went with the gs2. Only because I've payed so much and get so little quality.

same for me here, some times its ok and sudemly the game lag like ****... are you guy also have the probleme with the batrie?

ok ok you have muche more probleme thene mine. my wifi and everything work normaly, batteri is about a day long gaming film wifi and surfing, if you know someone in europe send the phone + the receipt then he can send it to the service... if not you are stuck, my phone is runing on ios 5.1 beta 3... i think if you update you ios can help. if need any help just contact me

you can wait for the iphone 5 ... to september 2012...

i am selling a brand new iphone 4s 16 gb w. for 700usd if you want it?

(i test every iphone 4s befor sending