Xperia x dual activating alone internally the stamina mode

[SONny7000]

From a few days ago I noticed that my smartphone was running with loss of frames in the games and the home screen, usually when I consume a lot of energy and I receive that warning that the battery will end before the cycle, but that does not activate the stamina mode, however even though internally it works limited, the problem is not solved after reboot, the device only makes it work 100% if I activate the stamina mode and disable it. By doing this the smartphone returns to normal operation and the fps remain high in the games.

[BrolasBrolas]

Check in your settings>battery>stamina if you have activated the auto stamina. 

[SONny7000]

It's deactivated. And when the performance drops does not appear stamina mode activated the phone just slows down, today it happened, after locking the screen mirror of my TV, I rebooted the phone and it started with the main screen with slow drag, I did the same procedure to activate the stamina mode and to deactivate it and the cell phone has returned to be fluid. To record my battery was 60% still.

[SONny7000]

Another thing that bothers me in Xperia x is the throttling, unlike the other Xperia I've had, in Xperia x when the cpu arrives in the house of 41, 42 degrees the games get fps falls, including the camera, which I do not need nor shoot at 60 fps to reach that temperature and the camera application will shut down.