How does it deal with the sudden inrush of air and the object at supersonic speeds when the hatch is opened? Although, I guess for something about to go 5000 m

How does it deal with the sudden inrush of air and the object at supersonic speeds when the hatch is opened? Although, I guess for something about to go 5000 mph through the atmosphere, a little extra air probably isn't a big deal. Maybe the hatch cares though.