Recently bought the s7 and noticed its quite hot and battery drains quite fast

So i recently bought the galaxy s7 and noticed that my battery drains faster than it should. it also gets quite warm most of the time. i tried a ton of fixes that didnt help and was wondering if anyone can help or has the same problem. i did find out that snapchat was overheating my phone and taking up a lot of battery but even when i shut that down it still seems to drain fairly fast. would be great if i could get some help on this. thanks :)

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