User blog comment:TheRealD/Why won't Doflamingo uses his parasite ability on everyone in Dressrosa?/@comment-87.211.21.249-20141228184944

Every Df has a limit, so i think that its probably a combination of:

1. Indeed it cost much more efforts/energy to control stronger characters ( The more you try to manipulate the faster DD his energy is drained)

2. Restricting a person cost far less then forcing them to move as puppets and  since the sugar was K.O he wasnt completely sure that Fujitora would still go with his orders/co-operation. If you then add the NW fighters and alliance  as DD his enemies he probably wants to conserve energy.

3. Even if the above statements are off dont forget DD has to maintain his Bird cage, something an Admiral couldnt even crack that would probably cost him alot of stamina to maintain, this could also be a reason to not use those moves. In the past his opponents were not this strong, so we could probably assume that even if he was able to use those moves while upholding BirdCage. DD would be fucked if  Fuji went after him.

As for his clone i think all of those moves can be compared to LAW his fruit in essence. Both Law and DD have broken abilities.. So my bet is that the mayor moves are heavily related towards quick or quicker stamina depletion. DD is a beast so he probably can remain or use multiple moves longer then Law.

I think its something along that line