
I think the best part is how he just doesn't seem to care...until that last arrow. Then suddenly that's the last straw.
Although yea, it pisses me off how can some old Greybeard use a shout every 10 seconds while me, Dovahkiin, can use it maybe ...every 100 seconds?

From a lore/RP perspective, despite the Dovahkiin's innate talents with the Thu'um, the Greybeards have been studying it for decades and devoted their entire lives to its mastery. You've been at it, for...what, a day? A week? A month? Makes sense to me that even if you are the Dovahkiin, the Greybeards should still be able to wipe the floor with you when it comes to Shouting.