Nice plugin, the interaction between estim and the scene is really fun (and possibly painful, haha)
As Boogaboo said, the 2B normalize the signal / smoothen it over time. So I set the smoothness at the minimum on the 2B (top right value on the lcd screen in stereo mode) to have the best direct response possible on the audio. Moreover, it looks like it does not register well at low frequency (1-2 Hz) so I put everything at 5Hz (among other things).
Also nice that the plugin - app protocol is simple, I can easily see it being used to write custom servers to control other toys (well, that's what I did just for fun anyway).