Try pulling off a couple of the larger leaves...sometimes when you transplant a plant you tear some roots and it causes the plant to not have enough roots left to maintain the number of leaves the plant has...so the plant will droop over whilst it regrows extra roots, or you can pull a few leaves off and it will perk up sooner...take some of the load off the roots...because it is a constant pathway...the roots grow to feed the leaves that gather energy to grow the roots to grow the leaves to gather the energy...so on and so forth constant circle...and when you transplant you put a flat spot on the circle...so you gotta give it a bit, and in the mean time even it out a little by removing a few larger leaves...