Greetings. Finally got on. People are having alot of problems with stuttering, etc. I was having that problem too but finally adjusted my NVidia and tonight i was in large rvr at multiple keeps (2+ wbs), high quality, shadows balanced, animations balanced and show character actions (forget the name) to all. Had no lag, not stuttering, nothing. Been like this for almost a week now. It is wonderful. Here is what I set.
Go to the NVidia control panel
Adjust image setting - use advance 3d image
Manage 3D - AF16x, Gamma ON, Anti Mod override any appl, anti setting 16x, anti trans multisampling, texture clamp use hardware, error off, extension off, force mipmaps none, max rend 3, multidisplay/mix gpu acceleration single, TF on, TF LOD clamp, TF quality performance, TF trilene on, thread opt Auto, triple buff on, vertical syn Force on.
Set multi-gpu configuration - go with display mode (not the nvidia recommended)
Hope this helps everyone who needs it. This has worked on both my computer and my wife's computer for warhammer.
Lamashtu