When using the x-ray view, the entire depth of the dataset needs to be rendered to simulate transparency. Depending on the data size, this may require quality adjustments for the following use cases.
X-ray for viewport rendering
To boost viewport render quality, you can increase GPU cache and decrease Minimum coverage under 
Preferences > Viewport Rendering. Beware; this may slow down the viewport rendering.
X-ray for orthophotos
Follow these suggestions to obtain good results with x-ray orthophotos:
- If you choose a light background color, ensure the x-ray option Invert is checked.
- Activate the x-ray option Silhouette for sharper object contours.
- Increase the x-ray parameter Size to fill empty pixels in high-resolution orthophotos.
- Increase the x-ray parameter White to reduce over-exposure.
- Increase the orthophoto parameter VRAM per tile to reduce the visual tiling effect. Keep in mind that this can prolong orthophoto generation.
X-ray for videos
When rendering videos from point clouds in x-ray mode, visible boundaries may appear.
Adapt the Point Count Settings in the Render Video dialogue to counteract this. Choose Custom to render up to 24GB points per frame. This will reduce the tiling and point-loading effects.
Choose No tiling in the Render Video dialogue to remove the tiling effect entirely. This will render a sub-sampled point cloud with no visible tiling. Be aware that this may cause a loss of quality, so it should be applied cautiously.