A different view of why we complain about lag and "the net code"

[Namasu]

I usually run back at the mob as soon as the cast bar finishes & don't take any damage.
It's the cast bar not the red lines which determine if you are in the target area or not.

Why do people like OP get to lvl50 and still doesn't understand this? This isn't an action MMORPG. It's suppose to feel more turn base and cast timer dependent in the spirit of Final Fantasy's classic ATB system.