XZ overheating in the tropics..

[xznewbie]

Hello guys,nowadays it's hot here I. Southeast Asia where I am currently in. I noticed my Xz easily overheats when the ambient temperature is in the 34-38C.The camera keeps notifying that it's not functioning normally due to high temperatures. Picture taking comes out slow, as if it's buffering.. Is this normal.? Another issue the battery drains faster even if the phone is not used often. Does anyone have similar experience, and how did you resolve it

[xznewbie]

I remember my old  Xperia Z never behave this way, When I am in such hurry similar climate previously all its apps run normally.

May I know what is the temperature range that this Xz can function normally.? Is there a way to tweak this XZ so it's not Malfunctioning in hot climates..?