Whenever I wake up my 2012 Macbook Pro after it's been asleep for a few hours, the screen turns on, but it is unresponsive for about a minute. During this time, the mouse cursor does not move at all whenever I touch the trackpad and the computer is unresponsive to the keyboard. I also see the WiFi icon in the taskbar act as if it is searching for WiFi (the WiFi icon is gray, but each bar turns black consecutively from bottom to top repeatedly). The computer is finally responsive after a minute or so and the WiFi icon stops searching.
Is this normal behavior for a Macbook Pro when waking? If not, what could a potential issue be?
My computer is a 2012 Macbook Pro 13 in, non Retina Display.