@Rich_EXF:
Why use point tracker when it seems FacetrackNoIR have incorporated the Freetrack protocol into their software?
from my experience, you should have very fast and powerful system to use FacetrackNoIR flawlessly.
on my system: i3 2,9ghz, it is too choppy and unplayable for my taste.
on the other hand, pointtracker use far less resources,
so it run a lot smoother on my system.
you can try it for yourself.
to make it more responsive, you can move the smoothing slider all to the left (=0),
that is the setting I use.