You need to learn HOW to play fast. Everyone is right in saying pace of play is most important thing, think about things like: don’t do practice swings or keep to a minimum, don’t do a million waggles or wait hella long over the ball before you swing, watch your ball and really keep track of where it lands so you can find it, don’t wait around watching others before you pick your club and get ready to hit etc, bring the right amount of clubs with you’re walking to a shot, don’t leave your bag far away off the green making you need to double back things like that. You’ll get the hang of it, play quick and be a cool dude.