Jim, I had the same problem as you, viewing the notes "all squished
together".  So, I used the "expand time" operator in my editor
(MasterTracks) to expand the time base by 10x.  I also set the Tempo
for around MM=175, and it played pretty good (sounded like a
xylophone, too).

Do you have the actual Ampico roll for comparison?

Cheers,  Robbie Rhodes