Late to this thread (and only a GTX 1080 user here) but even with my 1080 I'm setting HMD quality to 1.25 and easily getting 90fps practically everywhere, even without ASW, so I'd be surprised if the Ti with ASW can't go a lot higher.
For my settings I've got Bloom, Blur, DoF and Ambient Occlusion all turned off. I'd love to know exactly what Bloom, Blur and Ambient Occlusion are doing for you in VR (with it's inherently low-res) because my understanding is that these are fairly costly operations for little (if any) noticeable benefit.
I'm also not bothering with anti-aliasing (relying instead on an increased HMD quality to deal with my jaggies). Again, from my understanding (and a fair amount of testing), the in-game anti-aliasing is fairly innefective and a big performance hit.
Shadows is an interesting one. It's another very costly operation (visibly knocking great chunks off your fps as you crank it up). Some people live without it. Personally I love shadows (especially when landing at planetary bases) and have found that with anything lower than "High" they look terrible. So I've taken the hit and gone for High.
Aside from this I've got ALL other settings cranked up to the absolute max.
And as I say, I'm easily getting 90fps practically everywhere with ASW turned off on a GTX 1080.
Apologies if I'm speaking out of turn and going over old ground here, I'm just assuming than anything I can do you Ti guys should be able to do even better.