I have three 27" monitors running at bezel corrected 7780x1440 - Nvidia Surround . on a 980ti -I get around 50FPS.
And While WOFF has a multi monitor option, this is not necessary - when I did on a prior version, WOFF has issues and I had to reinstall.
Thanks @Stache for your information. I'm running a GeForce RTX 2070 so I should get decent FPS.
I'm currently running DX12. Will WOFF run OK on that? The PDF Guide says to use DX9 but maybe that's for an older version of WOFF?