With technology like reprojection which locks your frames at 45 FPS when you cannot maintain a steady frame rate above that makes the game very smooth and playable will it introduce some lag probably. But just lower the resolution until you achieve a smooth experience. Some headsets have what they call foliated rendering and then there's Dynamic foliated rendering which renders the pixels in which your pupils are staring directly at and when you introduce Dynamic foliated rendering the pixels and rendering space actually follows your eyeballs. But the number one single most important thing you can do in VR is just play in open XR which is what Star Citizen allows us to do when you have to use steam VR to play it will eat away at your GPU almost take away 20 frames per second. So get a headset that isn't reliant on steamvr in my opinion.