Complex sentence: The result is that a server which would otherwise be centrally hosted can be replicated and moved closer to a specific group of users (eg a particular office), who will then experience LAN performance for both read and write operations made against that server.
Split into simpler sentences: The result is that a server which would otherwise be centrally hosted can be replicated and moved closer to a specific group of users (eg the LAN a particular office). Users will then experience LAN performance for both read and write operations made against that server.