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Webcam lagging + DashBoard app

Hi, my name is Travor and i would like to ask you for help. 

I conneted my webcam (microsoft lifecam HD-3000) to myRio. Camera works fine, but after i´ll put it into block diagram and run it, it will start lagging. Maybe with some really small resolution, like 160x120 it works +/-  fine.
I´m running this program (see picture below) and i´m not sure if i did some mistake in it , or where is the problem. Because in MAX, when i´ll run a test, camera works without lagging even in higher resolutions like 640x480 etc. And my rio is showing CPU use about 20-30%..I´m not sure if its ok that this webcam can work only on that small resolution or i did´t do something to make it work properly. And, power supply is normal, from NI adapter. 

 

Second question if i may, is there any way how to put this live-stream video from webcam into DashBoard app?. I could´t find any manuals for that. 

 

Thank you for any help, I appreciate it,  Trevor. 

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