Welcome to the forum.
The EXP will fly in a 2 mph breeze quite easily -- for a flyer with enough experience. It sounds like you're relatively new to quad-line kites. If you have flown it successfully on the beach in steady ocean breezes then it will be easier to deal with inland winds like you have and like I have here in the Midwest. Until you get more experience you'll just need to wait for stronger wind to fly without too much frustration. Four miles per hour or more will keep you smiling. If you get 50-lb lines you can bring that down to 3 mph, so save your money for now. It won't make enough difference to justify the cost. The other thing that may be keeping you "grounded" is the tuning of the kite. There are tutorial videos on this forum, so find them and watch them. What JB (John Barresi) tells you is Gospel for beginners. Listen and watch the videos until you're sick of them, and then watch a couple more times, especially the tuning and low wind ones. With enough experience you can fly your EXP when there is no wind at all, but it takes some time to become that proficient. Fly when you have enough wind and it will happen eventually. Time on the lines is how you gain control of it. Basically there are three stages of flying a quad:
1. The kite flies you.
2. You fly the kite.
3. You and the kite fly as one.
Even the best and most experienced flyers are not in that #3 frame of mind at all times. You'll know when you're there. Your mind will be clear of all else.