Based on your description, your computer uses a special configuration since it is a hybrid Graphics system. It is important to say that hybrid Graphics computers require a special driver designed by the computer manufacturer to make the computer along with the hardware in the best way.
From our side, we have a newer driver version you can try. Here is the link:
If issue persists after using this driver, my best recommendation is to contact Asus and confirm with them what is the correct configuration or driver you require in your computer.
Here is a very good article about Hybrid Graphics Systems: