The fastest I ever cleaned a five pin set on a regulation table, timed by a last shot stop timer was 1.65 seconds.
A regulation table and pin set is a tiered table with two pins on the top shelf and three pins on the bottom.
The table itself is three feet deep complete with end plates, and all pins have to be off the table before your time stops.
As a matter of fact at a regulation shoot you are timed by people with stop watches and your time does not stop until your last pin is on the ground.
There's a video on my web site that a gentleman sent to me of me shooting pins in South Connellsville PA, good picture of regulation tables in the video.