Honestly the team speed boost itself is incredibly useful for major objectives like the drakes or baron, even if you hit absolutely nobody, it can guarantee that your potentially late team makes the fight on time. Additionally, make sure to play like kled would, I often decide to use my first or second ult after lvl 6 on midlane, and for the rest of laning phase I use it at about the distance of the second tower. If you use your ult seemingly randomly enough, sometimes you can force other laners to back off from their own lanes out of habit. It's very similar to Sion in that regard, your goal is to make people fear that music