A friend brought her computer over today and we played today. I noticed while running circles around her that on her screen it looks like I'm moving in a triangle. I know issues like this never tend to be completely resolved in MMOs, however I do remember FFXI's lag was much less noticeable. I made videos of multiple people running around someone in FFXI, in FFXIV it is impossible. After realizing this earlier today I have noticed responsiveness issues all over.
I live in the United States so I don't know if I'm experiencing the same issue as the European latency problem. I know nothing about game programming and I understand FFXIV must be more complex and probably takes up a lot more space than FFXI did. I just wish for an optimization of the entire game to make it run more smoothly.