Delay to refresh patterns (zoom IN and OUT)

MS CE 16

Hi.

I have some patterns in my drawing and when I do Zoom IN and OUT it seems that there is some delay or a portion of the pattern (case of the triangle) is showed later.

Is this normal?

I think that the spacing in the pattern is not enough small to do this. Moreover my graphic card is a Nvidia Quadro RTX4000

Also, when I do a lot of zoom, the pattern is showed in gray instead of its color.