Does it hold them upright and/or keep them well-spaced? Then the scrog is doing its job, adequately. My lower scrog is for training and upper scrog i want in top 6-8" just in case i run into a floppy phenotype that can't hold it's weight. If too low, they'll just snap/bend over the scrog. My top trellis does nothing 80-90% of the time, lol. So, it depends a bit on how you are using it... just make sure it is accomplishing what you want out of it.
Don't take off leaves unless it's congested and a breeding ground for microbes. The products of photosynthesis are incredibly mobile. Apical dominance is why taller growth points and more primary branching grows the most, i.e. gets the most sugar allocated. It has little to do with which leaf the light hit to produce that sugar. Leaves are responsible for more than just light absorption and transpiration/respiration. Removing leaves is bro-science stuff.
While it is true anything green on the plant might have 'some' chlorophyl, and therefore techinically capable of photosynthesis,, it's incredibly less than the top layers of fan leaves. This aint the palo verde tree. Various organs evolved to do specific things. flowers are for reproduction not photosynthesis, respiration or storage of minerals. It's called cell differentiation.
not enough? Removing leaves reduces co2 intake, which is very likely your limiting factor. Reducing co2 intake (on its own) is not easily outweighed by some supposed benefit that may or may not be true and likely is not.