I think it is good for priests to be pastorally sensitive to the needs of busy people who would come for Mass if it didn’t mean rearranging their schedule. A couple of years ago, I came to our noontime Ash Wednesday Mass and prepared to sing as I always do, in the choir area. Our pastor approached me and said “sorry, this is a “low Mass” for people on their lunch breaks.” One of our substitute priests is well-known in the parish for his speedy Masses; I attended a couple and did not get the feeling that it was overly rushed or irreverent.
However, a Dominican I once knew also sped through Masses, and he was always jabbering quickly, rattling off words at top speed as if it were a nuisance to say them. He chose the simplest Mass settings and this was at a community rife with liturgical abuse. I was known to wax derisive about his speed, and came to call him “Father F., the Fastest Friar in Phoenix.” Priests should NEVER take this careless attitude toward Mass, even if they believe that time is of the essence. It will quickly wear out the assembly and cause resentment. Every time I finished one of Father F’s Masses I felt I had to catch my breath for five minutes.