Why can I not change display1 to GPU (laptop)

Trying to help my buddy with his laptop when he runs games, the laptop is not using the dedicated GPU and instead using the integrated. I’ve set the default GPU to his graphics card, but still having problems. when I connect to a monitor to games are good no lagging because the HDMI port connects directly to the GPU so I’m just trying to get help why this laptop won’t let me change it. I’ve done all the settings in Nvidia control panel.