Light intensity

Hey guys I'm still trying to dial these LEDs in no matter what I do one of the rooms the plants leaves seem to get really crispy like even when I turn the intensity down I was giving them about 15-20k lux max which equals about 200-300 ppfd I believe,the leaves almost look bleached but idk,I wasn't having any problems in any other room maybe not enough air and c02 because the room has no windows but I leave the door open,also I was using coast of Maine soil but the leaves look the by like they need nitrogen maybe idk

thats not light intensity, thats an issue with the roots, soil, overwatering

Do you remember when these bottom leaves started to get like this? There's a chance that everything is already in balance as your new growth seems to be okish and you mightn't need to worry about it at all.
But as always, listen to other opinions aswell.

What's your temp+humidity?