Particles text / FCParticle brush Property

EDIT : I found the solution. I did a bad calibration. But the latency is very high and the animation of the letters is lagging a lot.;;; And my GPU and CPU seem ok. 

I was experimenting some stuff on Particles text... 

InFCParticle brush Property, I'm trying,  with blob tracker and also with kinect, to make the text move. I used interactions tool to remap mouse position. I see in FCParticle brush Property that the X and Y are changing when i'm moving my blobtracker. But nothing is happening on the text.. 

Or sometimes weird stuff.. Like a line of the text is disappearing instantly.

So isnt it possible to remap the brush tool?

Note : When i'm using the brush tool inside the canvas window everything is working well.