Dear Caterpepi,
Thanks for your reply. And glad that Blizzard team is looking into this issues and fixing it for good. I also have the stutter in game like [Shiakaron} and explain in this post.
For your interest, I am playing with settings on low except the shaders. its fine at the start of the game then fps I have only around 10 30 fps and dropped below 5fps when late games and have massive battles. its unplayable!
Hope you can fix this as soon as possible for everything can have nice smooth gaming experience!
Thanks & sincerely,