As I'm sure Ned is probably about to say, also consider reducing the
spy interval -  see MessageTally class and look at the various spyOn:
methods. Most of them use 16 (mS) and you'll get probably more useful
results on a fast machine with a smaller value.
This actually feeds back a little into our thread on user interrupts
since the precision and usefulness of short Delays depends upon the
same mechanism.