The time allowed for making a shot is too short for challenging holes, or wind conditions, or difficult shots.
In one case, I was having a very close game with an opponent, and one shot was especially difficult. Time expired and the game expired resulting in a forfeit. Not a pleasant user experience from the perspective of either player.
At the very least, if no other solution can be found, increase the shot clock to 60 seconds instead of 45 (I think it's 45 but it seems to start at 42 for me). One minute per turn is not unreasonable in such situations. In any case, most of the time the full 60 seconds would not be used.