Thank you for your answer Paul.
Quality is allways setting to "Best" in my MSD.
In the Axion case if i change the gobo with another with less beams and no so smalls,things does not goes much better.
In the Pointe case here can see that my preference are setting to best.
If i reduce to a Best Live Performance beam dessapears.
Note that the beam problems starts when it goes facing the camera or near to facing the camera.