My LG mobile needs three tap to go to any application

[AC Question]

Hello, My friend has purchased a new LG mobile. He is having problem with its functions. He needs to tap to one application thrice in order to go through it. Even with the dialer and even to receive the calls

Can you plz help how we can disable this function?

 

[B. Diddy]

Welcome to Android Central! Which LG phone is it? Has your friend discussed this with the store he bought it at?