Screen resolution issue (Middle-earth: Shadow of Mordor)

My friend is having a problem with the game. It does not have almost any kind of screen resolution available in the settings, except for 520x280 and 1336x768 (native resolution). He has a laptop. It's just that his game runs poorly at its native resolution, and he would like to lower it a little, but 520x280 is just a wild pixel horror. Who will advise what ???