hi driskell and welcome to SF - i trust you'll enjoy the program and all the banter in the forum!!!
yes, i think you are starting a lvl or two too high. ideally you should be able to do in the region of 20 rounds in 20 mins, i.e. 1 round/min. although that is just a guideline, 9 rounds are way to few.
before you continue with D2, first determine on which lvl you should start. for your next WOD, do L2D1 and see how many rounds you can accomplish.