My name is James Baldwin, and I am a network engineer here at BioWare.!
Hey James! Thank you for posting.
I invite you to take a look at the forum thread, "Banned for Lagging" : http://www.swtor.com/community/showthread.php?t=581901
I understand you are probably not directly involved with CS complaints, but perhaps you have some insight into how bad lag, dropped packets, network spikes, and other issues can impact gameplay and give the appearance of warping or moving faster than one should (depending on how your server and client are coded to handle such interruptions).
As to my personal experience with what appears to be lag, it's generally in warzones, and generally impacts every player in the warzone, which would seem to suggest something serverside.
I appreciate any time you might have to look into this,
-- Valdictae of the Harbinger