How old is it?it can potentially still double in size. Indoors in veg I run autos on 24 hours on lights because they veg for so little time.
The more I grow autos the more I realize they are so inconsistent. Case and point this last run I am currently trimming. I have 2 each, the gelatos one turned purple the other did not. The wild Thais are completely different leafs and plant sizes.