Graphics problem with Qt on up board

tmuallimtmuallim New Member Posts: 1

I am trying to make a program to get data for intel realsense d415 rgb-depth camera using qt on up board.
I tried to get frames from the sensor and it works good and the speed is normal and I can reach 30 fps.
Bu as I start rendering the color image on the GUI the frame rate goes down to 4 fps!
I just display a simple 2d image in a label at the GUI.
I am using Ubuntu 16.
is there any problem with graphics on up board?
And is there any way to solve this problem and speed the program?

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