@OP how often are you watering? They honestly look underwatered. Do they perk up after watering or does it get worse?
My plants in fabric pots also looked like that and it was because of underwatering. I had to put them in the ground to fix the problem. When I pulled back the pots they were wet on the surface but bone dry towards the bottom.
If it turns out to be underwatering, what you can do is spend a day soaking them (but not causing too much runoff). Give them a gallon of water every hour for about 5 hrs, so 5 times. Slow is key, because if you did 5 gallons at once it will all runoff. Your soil is likely hydrophobic so you can add a surfactant like Yucca.
Then from here out water more frequently and don't let your soil microbes die off. Anyway, none of this matters unless you know it's a watering issue.