According to the Azure documentation:
"Azure Cosmos DB guarantees end-to-end low latency at the 99th percentile to its customers."
This is a huge promise. Cosmos DB offers end-to-end latency reading under 10 ms for 1 KB of payload, and write under 15 ms in the same region of Azure. This is very impressive and helpful.
With this high response rate and low latency, let's see how Cosmos DB manages consistency.