First grow - Dinafem MobyDick XXL Auto

So ive no idea really what's happening with this lady, big mama compared to my critical 2.0 running along side is way behind, and seems like it's covered in pop corn nugs. I think somewhere down the line I've done something wrong, it's grown to huge, with plenty of bud sites all over however very small and undeveloped, any suggestions moving forward for any fix would be great I know there's anywhere from 2-4 weeks left so fingers crossed the next while makes all the difference. PH is always tested so i dont think it could be that? Really not sure but onwards n upwards another week down lots learnt and fun watching