Early at the lounge and still want to shop ? You cannot return to the A terminal shops, but you can take the bus to the B terminal in stead ! (Reason: you passed the border entering T terminal)
If you've already entered the dreaded T Zone, then it's too late. If not, turn around and go back to The Loft. This lounge IS usually quieter and less busy, but food and drink is meager at best.