When I wake my MBA from sleep, the first app takes 30 seconds to open

2011 MBA, problem did not exist in Mavericks or earlier.

Now in Yosemite, after I open the lid and the screen comes on it takes anywhere from 15-30 seconds for the first app I click on to open.

Everything after that and the entire time I use the computer everything is lightning fast.

Problem does not exist after a reboot, only after waking from sleep.
Really tough to find answers on the internet, so I'm hoping someone here can help.

Thanks!