Can't say I've had any stuttering at all, I do still have the texture bugs from DX11 tho (textures not loading in as they should, weird glowy textures and black textures).
One thing is pretty odd tho, I have a 1080Ti Titan and since I upgraded to the latest Nvidia drivers I've been having a LOT more texture issues than with the older drivers. And no, Windows upgrade won't do anything at all for GW2.
It might be helpful if you list your specs maybe OT, never know if someone here spots an error somewhere or a hardware piece with known driver issues?