Feinting is long past just switching attack directions, feints that work rely on camera angling and you can do a lot more with that in much shorter time with high sensitivity.
Im not really much for the feinting, but the ones i do take the slightest movement. And watching stuff from M for example, they barely move the camera either, and they are pretty good at feinting etc. I cant say ive seen many feints when the character turns as if high sens is being used.