I've experienced this issue in spades as well. It's not keeping me from playing, but it is enough of a nuisance to make me cringe a little bit when it happens. Most noticeable (as the OP stated) with Force Sweep, but I see it with Sundering Strike and other animations. I've been curious if this same issue is what cause my knight to flourish his lightsaber a little more sometimes when I use Slash. I.e., he does the initial wrist twirl and then it's supposed to be "thwap!" but he adds in another wrist twirl. (I'm laughing at how that sounds coming out...too many wrist twirls, dammit! ) However, I also notice it with Riposte, but it's not the delayed animation so much as it is delayed damage. I stab the bad guy and then he doesn't take the damage until a good 1 or 2 seconds later. Like I said, it's not going to keep me from playing, but I would be very thankful if it was fixed.

I partly agree with the OP and partly think it's better to just live with it and enjoy the game; however, I would like to give an example of what the OP is talking about that struck me in particular (and by struck I mean had me laughing): In the Esseles, the lower ranking guy who works in engineering suggests the reactor reset and the head of engineering says it will vent them into space. One of the options on the wheel was "Useful plans only, please." I choose it, and then my Knight ends up saying something like (paraphrasing), "Why don't you tell your lackeys to shut up unless they have a real suggestion." The wheel and what was said felt a little incongruous to me at that point for sure.

Can someone who has finished Act One please give me a rundown on how the Legacy System works? Thanks in advance!