Same here, since the June 29 update I am lucky if I can get five minutes of actual game play in at a time. Doesn't matter the character the zone or what I am doing. Even standing alone not moving it will freeze. Others in my guild on teamspeak are saying they have been unable to even log in so I guess I'm lucky I can play for five minutes then shut down wait for several minutes of loading screens then get another five minutes. I have new armor I am trying to wear. Maybe by the weekend I'll have it on and can venture a very tiny little way out into the world and get killed by something as I try to get back in the game.
Client freezes have been an issue since 2.0.5 - nVidia or AMD - Windows 7, 8 or 10 or 3.1 - same thing. It's probably our add-ons or flying insects that haven't been removed from those areas yet.