Maybe we shouldn't think of it as ONE massive explosion, but a chain reaction of explosions. Certainly the Falcon could outrun a chain reaction. With some creative editing, I think one could convey the idea of things being overloaded and exploding instead of one huge explosion working its way outward. Maybe have the DS break apart instead of just pop (the last one popped, maybe since this one isn't fully built it could just break apart?). Just a thought.
Unless you just kill off Lando. Then you don't have to do anything. (If Fishman can post his mockups, then I can certainly repost the only video one I've ever done!)