As part of weekly maintenance, BioWare has rolled out patch 1.1.0b for Star Wars: The Old Republic. The update contains a number of bug fixes and optimizations, most notably an improvement to the ability delay issue that has been plaguing many players. Sources on Reddit and elsewhere report that perceived delay when activating player abilities has been drastically lessened.
Further, Georg Zoeller, BioWare’s Lead Combat Designer for SW:TOR, posted on the official forums to assure players that further fixes and refinements are coming. Such improvements include clearer ability cooldown animations, more accurate cast bars, and better synchronization between ability activation and character animations.