Halos or flickering

The Eizo presents the colors vivid and brilliant. Even the black level and contrast can convince. Black is actually represented as black and not gray. The color space is large, color banding, I could not tell. However, my Eizo had enormous halos on the lower right and left of the screen. In addition, I noticed when viewing large gray areas on the screen a violent fibrillation. Also in other colors that have been shown all over each other, I could notice this flicker. Could that be it this is PWM fibrillation. But as I have when editing images in Photoshop or Lightroom example often large gray areas, this is not acceptable to me. While viewing photos flicker me, however, is not noticed.
Because of the halos and the problem with the flickering I am not convinced by the Panel of this screen. Nor can the Eizo set only on the remote control. If you move this or thus be the 2025 coin cell battery empty you have a problem. Because I would have rather liked a few buttons below the screen.