In a Monopolistic Competition Structure, how can the Long Run act as Perfect Competition? -Is there Static Efficiency?

-If Supernormal Profit is being made, new Firms, thanks to the Low Barriers, can enter and make the Demand Curve shift to the Left since the Market Demand is Split between more Firms. -New Firms will enter until Normal profit is Earned. This will happen when the Price = AR = AC. -Allocative Efficiency is not Achieved, as MC is far Below the Price, and Productive Efficiency is not Achieved, as the Firm can still go Further Down the AC Curve