Is this supposed to be the true delay of Barrage and Dragon Strike

I think MSEA Viper skills are rigged. Their 'Barrage' attacks are faster than JMS' as well... I think someone screwed something up in MSEA and made it a bit too fast.

EDIT : After review of the video, I can say that this video is a bit sped up, making the attacks look faster than normal. Look at her buffs and see how they're dying off faster than normal, and Pianus' animations are faster than normal.

That still doesn't excuse the fact she isn't taking a single hit, except when needing to rebuff.

Is it me, or is she not moving?

Barrage never actually moved me forward when I used it at Zakum. On platforms, as long as the stance effect of the bubble keeps up, I never recalled moving any closer to Zakum than before I started Barraging.