SCUF Reflex uses a standard Playstation DualSense controller board, therefore, its firmware and connectivity is exactly the same.

Playstation does not disclose an official speed for the wireless latency of the DualSense controller, however, you will not experience any noticeable input lag as long as you are within a decent range of your console. As you get further away from your console, your Bluetooth signal will become weaker which can translate to a performance decrease and connection drop.