[Q] XPERIA S overheating and lags a lot

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http://forum.xda-developers.com – My device is overheating and works very slow after that. It happens after 7-10 minutes of use ,no matter which app(it can be Subway Surf and a heavy game like Asphalt 7). It is very annoying ,the phone works so slow and I cant play games... God ,it is dual core device and I feel like I have my old xperia play :( (HowTos)