While I agree with previous responders who basically say not to worry about it, if you REALLY want to get the Superhost designation, there are things you can do to increase your number of bookings.
First and most obviously, make your place more appealing. How? Again, first and most obviously, drop the price (temporarily). Also, make sure that you can honestly check off as many amenities as possible. (Spend a few bucks if necessary, if you're serious about this.) Also, if you haven't had a professional photographer shoot your place, do that. (Well worth a couple hundred bucks if you plan to stay on AirBnB more than just a year.) For the bookings that you do already get, do everything you can to ensure 5-star ratings across the board -- make sure your place is squeaky clean, leave the arriving guests a couple of beers in the fridge and a couple of pieces of fruit on the table, contact them halfway through their stay to ask if if they want fresh towels (even if you've left 20 towels in the apartment), etc, etc.
While being designated a Superhost isn't really necessary, it's actually almost TOO easy to get there, and it DOES help in multiple ways. (Higher search ranking, better guest perception whether deserved or not, and slightly improved support from AirBnB.)