Right-click > Manage > Browse local files .
If you prefer not to use third-party plugins, you can manually force the game to accept your aspect ratio by editing the game's executable binary file. Step-by-Step Hex Edit Download a free Hex Editor such as . sleeping dogs ultrawide fix
If you only need a slight adjustment, you can use Flawless Widescreen . This tool runs in the background and hooks into Sleeping Dogs to dynamically adjust FOV. It doesn't permanently modify game files, but it can be CPU-intensive. Right-click > Manage > Browse local files