/diy/ - Do It Yourself

Im printing some lithopanes and I'm curious about this prusaslicer behaviour.

The model is 100% infilled. This particular layer (pic related) is 100% solid; however, instead of normally filling it with the normal zig-zag movement, in certain areas (like the red dot) it tries to approximate the shape of what is going to be above that area.

Since the infill is at 100% I assume this is useless since the layer is going to be completely solid anyway, and I also assume it adds more print time because having to make wierd shapes will never be as fast/efficient as an uninterrupted zigzag pattern.

Is there any actual reason for this? How could I disable this behaviour?