Strain
Ok so not as fast as described unless I had harvested her early but......
There could be many reasons, so not necessarily the strain.
For one thing, I use UVB light, which I personally think from experimenting, slows down the auto growing process, which is actually one reason (amongst others) that I use UVB.
All said and done there is a good yield on her and I certainly look forward to the smoke of this crystal coated beauty.