Its not overwatered, you can see since the stems are hanging too. Overwatering makes waer build up in the tips of the leaf and therefor only the tips hang.
If the whole plant is hanging its damn underwatered, give her more water. Give her a lot water at once but rarely, i hate those kind of pots, since i normally water with 10% runoff to ensure the whole soil is watered perfectly, that will be a mess with your type i guess, but should work too