Due to this "compression" of a little-changing picture, disk space is significantly saved, the traffic between servers and the load on the video server are reduced. As a result, the server allows you to process more cameras than other products.
Home Security Camera is built on client-server technology. That is, the server part can be installed on a separate computer (recording to the archive, event detection), and the client part is a user interface.
Over time, technologically obsolete programs will leave the market. The time has come for new products.