Deepfish consisted of a light-weight browser client powered by a server backend which does most of the processing. The server streams only the data that is visible at any moment, which improves load times and responsiveness. Despite the increased speed in Deepfish, it's quite bandwidth heavy and can render pages slowly if it were launched on a device with lower specifications. Whenever a user would zoom in, the zoomed-in high quality has to be downloaded from the server.
