Whats happening to this plant?

Hey guys , so this is a photoperiod bubba kush I just flipped about 2 weeks ago. For some reason the leaves are yellowing and the tips are looking burnt . Can the plant be too big for its pot ? Is maybe I need to water with more run off ? Any suggestions? Or maybe too close to the light ? The light is high as it can go

Not sure what the issue with the leaves are but if it were me I'd open the canopy up for better airflow. Good luck!

looks like light burn. is it possible to pull the branches outward away from the light ?

Looks like a Potassium deficiency to me.