This is an acknowledged problem with SU 2016 and Mac OS X 10.11.4. They are trying to sort it out. See Orbit heavy lag with Mac OS X 10.11.4
and
Delay using wacom tablet - #13 by TheOnlyAaron
This is an acknowledged problem with SU 2016 and Mac OS X 10.11.4. They are trying to sort it out. See Orbit heavy lag with Mac OS X 10.11.4
and
Delay using wacom tablet - #13 by TheOnlyAaron