TestStand module adapter latency?

I'm trying to determine a couple properties of TestStand 2014 SP1 with respect to the latency of operations:

• What is the latency between calling a TestStand step with a LabVIEW module adapter and the LabVIEW VI executing?
• What is the latency between completing the execution of a LabVIEW VI in a step and then passing the data from the outputs of the VI to TestStand?
• What is the average latency between step executions when using On-the-Fly reporting?

I'd also appreciate information about the DLL and None adapters as well since we have those in use.