yup - its called supersampling, and its easy to change in the vive.
however - you need a beasty graphics card, ideally a gtx 1080 to run at 1.5x the normal rate and still achieve the crucial 90fps with no problem.
to do it comfortably you need a 1080ti.
expensive but totally worth it - makes a dramatic difference to visual quality.
O nice I may very well investigate getting that before I buy a house (Priorities and all that ha )