Right after you water, does it perk up a bit?
DaisyI said:Water it the way you did when it was happy. The plant is a better judge of water needs then the internet.
WillC said:Your Fern may be reacting to either underwatering or to damage done to the roots during repotting. If it does perk up after watering and stays that way, then that should solve the problem as long as you don't let it get that dry again.
If the fronds continue to deteriorate even when the soil stays moist, then that means that there is some root damage, a common problem during repotting.