User blog comment:Goregutz619/HXH episode 126 discussion/@comment-24287488-20140424071814/@comment-23822532-20140424162921

Netero is able to perform one faster than sound motion at the time.

Thanks to the animation, we can see that when Netero does the praying motion, Meruem doesn't move a single inch -compressed time-, then when Netero makes the movement of "throwing" a Hand, you can see Meruem's arm moving a little bit, then he realises that Netero can only pray -we could call this the 'Condition' for his Ability- before launching an attack, and that's the only moment Netero is faster than him, after that, Meruem is capable of reaching Netero's speed and surprise him.

When Neferpitou encounters Netero, of course, Pitou is nowhere as fast as the King, his Ability may be activated in 1/10th of a second, but not even this nor the movement that could follow up Terpsichora -the Ability- is faster than Netero's pray. We should note that Netero shows a 'Hand' before launching that massive Emission attack, and we should note that the Guanyin Bodhisattva is also really fast, since it could hit the King without his time compressed before reaching Netero's body most of the time, in fact, Meruem only landed two strikes at the end -tho by this time he had the upper hand-.

So yes, the blast Netero throw was done in a similar if not exact way than the way he used to fight the King.