There can be reasons out of a person's control they are dying. I used to die more than I do now. The major reason was my computer lagged a lot. Some people don't have the luxury of being able to purchase a new computer like I did so this is something beyond their control.
We can't blame the person who is dying more than someone else without looking at the reasons. If you lag your actions are slowed down.
If we are to change the game according to the fact, that some people have slow computers, we should make the game turn based or so slow, people with good computers will find it it terribly boring to play, because enemies pose much less threat than before.