Prefetch less pages when a user has slow connection

[dnesteryuk]

The engine controls a max number of returned pages, although, the client should be able to decide when that number should be reduced. For example, if a user uses a slow connection, only one page with high confidence should be prefetched. If the connection is super slow, probably, the client shouldn't send any requests to the engine.

This article might be helpful https://deanhume.com/dynamic-resources-using-the-network-information-api-and-service-workers/.