Dancer & Lingering Performance Question

[Viladin]

Hey everyone, I'm hoping someone can clarify how Lingering Performance works with Dancer.

The last paragraph of the Battle Dance ability explains that it works exactly like a Bard for Inspire Courage/Greatness/Heroics. But Dancer also has lots of abilities which are only in effect while performing a Battle Dance: Fleet, Rain of Blows, Dance of Fury, etc. 

Are these abilities considered bonuses of the "Bardic Performance" and extended by the feat? Or are they only active while actually performing, and the extra two rounds only applies to the Inspire Courage effect?

I'm hoping it's the former, but I think it can be read both ways.

Its only active while actually performing.