How long was it in the old pot and soil? When you fed, how much and how often?

I would say about 2 years, maybe 2.5. And I fed it plant food in the past years. But this year only once (in early March, about 1/2 cap of baby bio with the water) - but then stopped because the drooping started. Would appreciate any thoughts!

If you found root rot when repotting it suggests previous overwatering. Between the loss of roots to rot and trimming the plant probably can't uptake sufficient water so drooping would continue. It probably need time to reestablish it's root system. Before they get planted out I have them in very light well drained soil. About weekly or more they're placed in a bucket of water with very weak fertiliser for about 10 to 15 minutes, then left to drain out. Between these soakings they only get small amounts of water.

after repot i usually tent the plant in plastic to raise humidity for a few weeks, until it gets over the transplant shock.

it would help to support the leaves with a wide cellophane 'floral sleeve' or smth similar, as the petioles can bend when in such state and then the leaf will die.

you can put it on the side and wrap some sheet of plastic like a cone, gently lifting the leaves up. the sides of the sleeve will support the leaves. then at the top pinch or close. and watch - the leave should perk up in a day or two.