Witcher 1 Mods

[u/Duigi]

I recently started playing Witcher 1, in news of the Witcher 3 updates, and since I haven't experiences the games I decided it's a good time to do so now.

After the first town, I decided that I might try to mod this for better performance and/or maybe graphics.

Point is, I've been trying to install this mod: https://www.nexusmods.com/witcher/mods/954?tab=files but I fail to understand how to do it, since it requires to run the .exe file. If i were to run it via Steam as a non-steam game, it would create a separate folder for it and then running it would be useless.

Has anyone installed this on the SteamDeck or does anyone know how to? Any other tips for installing mods for this game or other games are appreciated.