It's in very high demand, and it's entirely possible that what you have is just a mediocre tea. When done well, it's very fragrant.
Dancongs can be tricky to get right. IMO the first few infusions are usually best done around 93-95, with temperature coming up after 4-5 rounds. But each tea is different, and getting the best aroma out of them takes some care and adapting to the tea.
Sometimes more leaf helps get the aromas, sometimes less leaf.