The 2017 season was the worst yet for the many fans, the number of restarts from the tapes and the riders stopping at the pit gates to muck about with the bike before going back to the start. Cutting the two mins to a one min time would help and stop much gardening etc.
They should reduce the delays between races, and at certain clubs, the amount of tractor racing and get on with the meetings, especially when it is cold.
The main meeting should take no more than 90 mins, unless there are many accidents or air fence issues and fans can then either go or stay on for a second half of either practice or a 4 or 6 heat junior type event.