Guess if you are looking for some tips on this, you are angry a bit on game developers. And you're right: your real enemies are not those guys with spears, but poor control and absolutely inadequate camera.
It's very disappointing and spoils the impression of whole game.
Anyway, I found the only one way to win this battle.
![](https://i.ytimg.com/vi/t6ucTiIWzgk/mqdefault.jpg)