The droop? They look most like plants that have been either under or over watered(possibly taking a long time to dry, lack of oxygen at the roots) otherwise I'm in a low rh zone and they occasionally get a dry, twisty generally unhappy look to them.
You can boost rh by just putting a dish of water in the table tent, and keep the airflow up though so it doesn't get stagnant.
Good luck with the grow. ✌️