The single biggest issue holding back FFXIV needs to be specifically addressed.

[Seo]

plus its simple logic that a signal being sent over seas vs being sent over land is going to take longer.. 1000 miles is much longer and takes more time than 500 miles it makes a HUGE difference

There wasn't a "MMO networking" class but i've had enough networking lessons to know that latency causes this. The circle thing anyway. NPCs are different, there may be some objects that they don't need to obey the physics on due to errors in scripting.