Which means Luffy is stronger than Law, Doflamingo is just getting started, no matter how much he was weakened by gama knife, it doesn't change that he hasn't fought at full strength, he beat Law without even trying to hard.Luffy barely has any significant injuries that weren't from Doffy himself.
And? Doffy isn't worried because he doesn't believe Luffy will beat him, not because Law's attack has become insignificant.
When was that ever established? Luffy always fights seriously and doesn't hold back. He's given the best he can with Gear 2 and 3.
I didn't say that. I'm saying Law's Gamma Knife did significant damage to Doffy, meaning the performance he can do now won't be as good as the performance he could have done if he was just fighting Luffy and Law wasn't in the fight at all. That's kind of a no-brainer.
That is assuming Doflamingo's attacks follow a strict hierarchy, which I don't believe they will. Of course he's gonna have moves that are stronger than others, but it's not like he's gonna pull out an entire moveset that is twice as strong as everything he's already used.
That is a vast gap, unless he was weakened so much that him trying hard is now weaker than him not taking the fight seriously, than Luffy will have to be stronger than Law to bring him down.
As for Luffy's injuries, I return to the latest chapter where even Doflamingo said Luffy was half dead and he got those injuries from earlier fights, so they are close enough to being even.