I get involved in loads of this type of conversations and in the back of my mind I'm constantly thinking 'Coco, CaMg, A/B and a bit of pH down - that's it, zero complicationsright. i forgot.
you're not actually using a cannabis media or nutes. it can work but it's not really something most folk here would use. as far as the nute line all we can really do is tell you to try sticking to their schedule.
the plant is just large and hungry. it would eat some leaves no matter what you did. it's simply balancing the nutes for that plant, it's not far off. would be a little easier if you were using straight up cannabis nutes. gets hard to advise otherwise.
personally i'd just feed it a little more overall, but my nute choice is totally different.
your rh and temps don't seem that bad to me. i'd watch for mold as it matures.
let's see if @Ash4twenty chimes in.
i think they want to be viewed as something a little more versatile. they don't concentrate their products on the cannabis market, but it can be used. sort of a budget alternative. it's always easier when using nutes and media focused for our plant.