multiple kinect

edit

Hi, I'm trying to display pointclouds from two kinects! Actually I've instantied two openni_node (one for each kinect), remapping the topic from "camera" to, respectively, "kinect1" and "kinect2". Then I've created two other nodes that subscribe /kinect<x>/rgb/points and, rototranslate one of the two flows.

But, when I try to visualize the output, the result is a very low frame rate video with a substantial delay!!

What can i do??

Thanks a lot