How to enable HD textures when playing through GFN (Far Cry 6)

I play FarCray through the GFN service, since my PC is rather weak, but you know, there is no way to update now. So, I want textures of a higher resolution, because in the GFN in the settings it is indicated that as much as 16GB of video memory is allocated, and the game on ultras barely uses 5GB ... Does
anyone have any ideas how to do this in the cloud? Maybe someone has already done something similar. After all, HD textures are the official DLS