Yellowish

Like the others have said, it's most likely needing nutrients. If it's been in that same pot for 9 weeks, you might also be getting some issues with the roots binding up. You're still in veg so a transplant with/without root pruning may also help. Best of luck 🤞

Looks a little thirsty. I would suggest a top dressing of worm castings and feed some veg nutes with nitrogen.

too much light

She actually looks hungry to me - AND in need of some PK... I'd bring the Plagron back up to where you had it and I would add some bloom nutes for her... Actually, I'm going to change my mind... terra grow has an NPK of 3-1-3 ... I'd leave that right where it is and consider the possiblity of a nitrogen toxicity that has locked out calcium - which is what the yellow is showing. Your pH is fine so the only reason your plant isn't getting the calcium it needs is because the soil has too much nitrogen. I would suggest a flush (3x the pot volume of pH'd water) and at the tail end of that, add in 1ml/L of the terra grow and a half dose of terra bloom - couldn't find the NPK of terra bloom but at least bloom nutes do not have as much nitrogen as grow nutes do. Then let her dry out. The damaged leaves aren't going to repair themselves, sadly ... but after a few days, you should not see any additional leaves yellowing and the plant should be perking up. Just a quick question... when you water, do you always get about 10-20% runoff? This is important as it will clean the soil out of excess nutes and salts on a regular basis.... you can also be measuring the pH of that runoff to make sure what you're giving her is actually what is going on in the soil pH-wise... Good luck