I don’t know what is wrong with my computer because every time I am playing AOE 3 or AOM. The graphics seems to be blurry. I don’t have this problem with other games that I have such as Diablo 2, AOE 1, Rise of Nation, Warcraft and many more.

Do you know what is causing this? Please suggest some ways on how can I fix this.

Try configuring the game's setting try to make the settings low or medium or if that won't do it maybe there's a problem with your video/graphic card.