I am new to the forum, so if I make a mistake forgive me.
I am practically new to 3D, I am starting with Cinema 4D and Octane Render for a few weeks and I have a problem.
Every time I apply a material with "Displacement" this happens that you see in the following image.
Even leaving it by default that happens, leaving the quantity at 15, Smoothed normals ... etc.

I need help, why is this happening?
By the way, is there a way to change the color of the lines of the image dimensions? (The lines that appear in the Live View that correspond to the final image of the render).
Thanks in advance!