i can say it is absoluly impossible to dodge some aoes on a bad system (my old ps3). on my ps4 i can dodge everything. you get hit because of the delay from your system to the server. remember: the server lives around 1 second in the past. if your hardware is bad you will have a bigger delay. there is a delay from your system to your screen too (most TV's have a "game" option in the settings btw wich shortens the delay).

if you get hit your reaction or your hardware is too slow.