When playing goes to pause menu

[Android Question]

When i am playing subway surfers or cut the rope it goes constantly to pause menu, like 10 second and it goes to pause, another 10 second and it goes to pause. i have no ideia whats going on, please help me. is it a virus or something? my antivirus doesnt catch anything!

 

[Rukbat]

Make and model of phone? Amount of free RAM while the app is playing. Amount of free internal storage?

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[Ligeirinho]

its a tablet. samsung tab 2 10.1. 11,18 GB internal and 3,10 GB in a sc card.
I just wanted to add some information so you can help: before it didnt do this, he was normal, and then when i was playing ocasionaly it blocked and left the game, this started to happen a lot so a did a reset of the tablet and now it does this, mas it doesnt just go to pause it goes black for a 1 second or 2 and then goes to pause.