I have several students that when being evaluated by the computer, their performance is assessed as though they are 1 full beat behind the accompaniment.  These students have also sent me recordings of them performing along the accompaniment and they are not a beat behind (they are also some of my top HS performers that know how to perform with recordings/metronomes).  Is this caused by the computer not being able to process the data fast enough?  Is there a fix for this?