Asking as a non-pilot, but as one involved in human/machine interfacing in other very specific technical disciplines: Is there a consensus and/or established theory as to why this happens with FBW systems? Is there a delayed onset of feeback due to inertia of the larger aircraft(the 737 was compared above) or some sort of computer induced latency? Is there a known, fixed latency between control input and resulting deflection of a control surface, or does this vary depending on «how involved» the computer gets?