If u started lst as she started to flower. U restricted her ability to stretch. Tieing her down and locking her in place inhibits her ability to stretch out. Imo if u started ur lst earlier she would have been already booming out of her tie offs by the flower transition. And would have stretched out alot more for u. Unfortunately I believe u to be the cause of the lack of stretch and smaller plant. Use this as a learning experience of y u start working on autos sooner than later. Happy growing and stay lit fam.