I'm having trouble but I'm not fresh off the boat. Drivers always come from Nvidia for my cards, especially a Quadro.
I have no 3rd Part Plugins except the Nvidia Normal Map plugin, no anti virus software, I use suitcase and always have but DO NOT install the PS plugins, no firewall as I'm running and managing a renderfarm here. OS bugs, possibly, but this has started in CC and is now in CC 2014 but as I said no version since PS 3 has run like this, on both platforms. Network, yes but I'm having these problems now, locally.
Sorry, if I'm coming off like a pain in the ***, I'm not I've just been around long enough to rule out the simple answers.
P.S. at 7:32 PM PST I updated the Nvidia driver. Same response time.
-Patrick