I'd prune off about half the top. Take off that small stuff down low and cut back as much as needed of the big stuff on top. Take out the crossing branches and make it more compact. Then pinch back the regrowth to keep the top somewhat compact and balanced.

If you apply plenty of alfalfa it will regrow all you cut off and more. The new growth will bear plenty of fruit next year. In fact if it grows well this summer you'll probably need to shorten or remove part of the small shoots early next spring when it starts blooming. The purpose of the spring pruning is to produce larger, sweeter fruit and avoid over bearing.

Thanks Fruitnut! I happen to have some alfalfa on hand too. Will do that this weekend!