@ Beylous: In some games vorpX can do it, it shows an according message in the top left corner of the Game window if that is the case. If so, you can select a quality preset on the DirectVR page of the vorpX menu. Whenever vorpX can do it, let it do its thing. It automatically does what moadepth recommends as optimiziations like selecting a performance optimized aspect ratio and so on. There is no real reason to tinker with stuff like that that if you don’t have to.
Also please don’t tweak too many settings in the vorpX menu until you have gained solid understandig of what they to. Many settings aren’t of the typical ‘more-is-better’ type and have to be dialed in with care. At least while you are new to vorpX, be a bit careful with tweaking.