I'm skeptical that going up to 1080p would provide enough of a difference. Despite being twice as many pixels, it's only 280 more lines. 2560x1600 may be the way.
I've seen people talk about turning off the stereoscopic image, but it may be game dependent. It's not completely pointless as you still get immersed in the scene and head tracking will still work. It probably won't help the GPU out though, as it will still need to render the two views.
At this point nkPro feels better than Assetto Corsa to me. This may be due to my framerate not being very good in AC though, and of course the cars and tracks are different.
Attached are two versions of a patch (one for the last release and one for hg head) to remove the use of native Windows methods in kernel32.dll for converting to LFS encoding. .Net methods are used instead.
This allows it to run properly under Mono on a non-Windows system.
I have those settings turned on for those games that need them turned on. Not everything handles FFB the same way as LFS, but it's still FFB of a sort.