From the MLL website - Maybe college should go to 90 seconds.
MLL uses a 60-second shot clock in order to keep the game fast and exciting for fans and players. The shot clock is reset after a goal is scored, a shot hits the post, is saved by the goalie or there is a change of possession. If the clock runs out, possession is granted to the other team. Teams have 20 seconds to clear the ball across the midfield line.
Because of the shot clock, there is no restraining box to “keep it in” such as in college lacrosse.
MLL also has a 2-point arc on the field that adds another unique aspect to the game. Players must have both feet behind the line before shooting the ball in order for a 2-point goal to be scored.