The PCoIP display protocol uses an encoding approach called progressive build, which works to provide the optimal overall user experience even under constrained network conditions.

Progressive build provides a highly compressed initial image, called a lossy image, that is then progressively built to a full lossless state. A lossless state means that the image appears with the full fidelity intended.

On a LAN, PCoIP always displays text using lossless compression. If available bandwidth per session drops below 1Mbs, PCoIP initially displays a lossy text image and rapidly builds the image to a lossless state. This approach allows the desktop to remain responsive and display the best possible image during varying network conditions, providing an optimal experience for users.

The build-to-lossless feature provides the following characteristics:

Dynamically adjusts image quality

Reduces image quality on congested networks

Maintains responsiveness by reducing screen update latency

Resumes maximum image quality when the network is no longer congested

The PCoIP protocol is efficient enough to provide the build-to-lossless feature in all conditions, which allows this feature to stay on by default.

You can disable the build-to-lossless feature by setting the Turn off Build-to-Lossless feature group policy setting. See View PCoIP Session Bandwidth Variables.