No need to recompress the game.
Create Setup.ini file next to Setup.exe and change the name, exe files and game folder names, etc.
Code:
[Executable#]
------------------------------------------------------------------------------------------------------------------------------------------------------
//Name= // string
//Type= // string ("", "NORMAL", "STEAM", "GOG", "UWP", without quotes) ("" = "NORMAL")
//Exe= // string
//ExePath= // string
//WorkDir= // string
//Parameter= // string
//Icon= // string
//GDFBinary= // string
//GDFBinary<LNG>= // string
//ShortcutProt= // 0 / 1
//RunAsAdmin= // 0 / 1
//ManifestID= // integer
[Component#]
------------------------------------------------------------------------------------------------------------------------------------------------------
//Name= // string
//Size= // string
//ItemType= // string ("", "CHECK", "RADIO", "GROUP", without quotes) ("" = "CHECK")
//ShowInstallLabel= // 0 / 1
//Checked= // 0 / 1
//Enabled= // 0 / 1
//Level= // integer
I have highlighted the code you need to edit in your case. You just have to reinstall the game to make proper shortcuts.