If you attempt to search for guides, you will quickly encounter a major technical roadblock. Unlike Breath of the Wild , which can often be run directly from a disc image (WUD or WUX files) with relative ease, FIFA 13 is widely known in the emulation community as a "Loadiine" game.
Right-click FIFA 13 in Cemu → Edit Graphics Packs → Download latest community packs (if needed). fifa 13 cemu