How quick is the price update from tier 1 forex liquidity providers after a price move to my retail broker? 2ms +/- from tier 1 liquidity pricing update to prime broker. Then prime broker compares best ask/bid from all available tier 1 liquidity providers. Then 2ms +/- from prime broker to retail broker server. Then 2ms +/- to my co-located vps/dedicated server.
Yes, depending on which broker you trade with and how many liquidity providers it has. For example, my ECN broker fxopen reflects market changes very quickly due to its wide range of liquidity providers and has super-fast order execution.