mobile

This is probably the only biggest annoyance of Lollipop for me. Whenever I am on a call the proximity is so late to respond that when I take the phone in front of me from my ear/face the screen turns on after a good 2 seconds or something, on paper it might not sound like a big deal but in practical usage it's killing me. I am used to disconnect the phone as soon as I am done with the other person but for this there is a slight delay in that.

I am sure I am not the only one facing this issue, so what's the solution, if there is any? I am quite sure its software, cause on KitKat it was almost perfect.

Thanks in advance.