Hey friend,
Your nutrients and all basic stats look good temp/humidity etc. The only suggestion i could think of for the next grow would be when you do the heavy defoliation like in week 13 remove a lot from the bottoms too all bud sites branches leaves everything, that'll bring the energy to the big buds and remove all those little popcorn buds.
Also you're only 6 weeks into flowering so there's still hope for these buds to bulk up nicely. 2-4 weeks more probably...so keep up the nice nutrients air flow, humidity and light and I'm sure you'll be happy in the end.
Happy harvesting ✌️