Devotional activation fails at low fps

If you are running at low fps (10 minus as many of us with OS X are currently condemned to do) a large number of attempts to activate devotionals fail, taking many tries to actually work.

It appears the activation check is being done once per frame and (guessing) only checks for intersection with the outline of the devotional. Better would be a 1/n frame check against the whole volume, so those of us suffering with poor fps wouldn't have to hop around like mad things trying to get buffed.