Native SQL Server Replication is not known for its performance, especially on low-bandwidth and/or high-latency networks. With NitroAccelerator you don’t have to consider expensive, cumbersome options such as WAN acceleration appliances, log shipping, or Always On Availability Groups. NitroAccelerator installs in minutes, does not require restarting SQL Server, and immediately begins accelerating your Native SQL Server replication connections to attain real-time performance, even over your slowest connections.
SQL SERVER REPLICATION RESOURCES
Transactional Replication and WAN links – Argenis Fernandez
SQL Server – When to Use a Sledgehammer and When to use a Screwdriver – Pinal Dave (SQLAuthority.com)