I've been playing this for over a year and have some thoughts an suggestions.
1. Clocks.
There should be only 2 choices, 60 and 90 secs. Fast clocks do not save time they just create more shots due to bad ones and timeouts. Coffee or bathroom runs become an adventure. I played a 30 sec round with 4 and it took 45 minutes to play 3 holes... everyone was gone by the 4th hole.
2. Slow clock, fast gameplay
To speed up play just add an option on setup for gimmees. 1, 2, or even 3 feet and let the game auto-finish. How many times I sat there waiting for all those reloads I can't even guess but it is a whole bunch and is the biggest bottleneck in this game. Cutting down unnecessary reloads is the best way to make gameplay faster.