leaf monster - very high leaf to bud ratio.. could be genetics.. might be environmental... look into guesstimated DLI from your light specs (read wiki on daily light integral). if it's not lower 20's, it's genetics.
some plants just do it... these are a pita to trim and take a lot more time/effort to do it.
remember, you can never polish a turd. if you give good light and keep the plant healthy, the results are mostly dictated by genetics at that point... as long as we don't step on our own dicks/flaps. beyond that, what we do has very little effect despite any feelings of hubris otherwise. but all the gimmicks and 'bud boosters' and "flavor enhancers" you want, lol..