Since I saw the conversation pop-up, as far as refresh rates go, overclocking your monitor can help in that regard. My monitor manages a humble 75hz at most but for any game that can't reach 75fps framerate locking can be troublesome as 75/2=37,5 and of course half a frame would cause problems. So what I did was to add a 74hz entry which means I can cap games at 37fps. That's probably what I'll do once I get my Witcher 3 copy as I think 60fps with higher settings is out of reach for me.
Sure it's just 7fps more than a 30fps lock but hey 7 frames are 7 frames