Rise of tomb raider not using discrete GPU

Hi, I'm trying to my nvidia gpu for the game, but game is not able to detect it, any solution?
game settings:
Game Settings: {

"autoInstallDxvk": true,

"autoInstallVkd3d": true,

"preferSystemLibs": false,

"nvidiaPrime": true,

"enviromentOptions": [],

"wrapperOptions": [],

"savesPath": "{UserDir}/Rise of the Tomb Raider/{EpicID}/",

"showFps": false,

"useGameMode": false,

"language": "",

"wineVersion": {

"bin": "/home/joyel/.var/app/com.heroicgameslauncher.hgl/config/heroic/tools/proton/Proton-GE-Proton7-49/proton",

"name": "Proton - Proton-GE-Proton7-49",

"type": "proton"

},

"winePrefix": "/home/joyel/Games/Heroic/Prefixes/Rise of the Tomb Raider 20 Year Celebration",

"wineCrossoverBottle": ""

}
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