To be honest I have the same Lag issues now as in 1.XX I actually don't understand why they rebuilt the engine when a good number of people experience the same issues. Confuses me tbh but hey not complaining, only time I actually "feel" the lag issue as a problem, is Monday and sometimes to a lesser extent Tuesdays when every man and his dog is spamming AK, or at Weekends when a good portion of the NA playerbase is online.

Other than that I'm first to admit it usually me being to slow or trying who whore in that extra cast lol

But SE is how they've always been, arrogant. "We do it this way...you WILL like it. Well unless there then becomes a massive public outcry then we MIGHT change something or offer insight"
Anyone who played FFXI for a few years will tell you it was the same back then as how XIV is now, the only reason FFXIV Originally launched in a state was due to the major arrogance issue.