Just for saving time low hanging fruit for me is eliminating any entry into the lane or circle at the completion of the first of a two shot foul. Don’t need high fives and low fives for any reason. Want to leave lane position while the ref has the ball, go for it, but nothing that slows return of the ball to the shooter. Too many team meetings there now. Simply a lane violation if you do and costs you a free throw or gives the guy the redo. Even subs can stay out of lane on entry and exit.
On bonus attempts, must leave lane and return to A legal position quickly without physical interaction with other players. No mini huddles. Pointing and talking allowed.