Asus Rog Swift PG279Q Monitor Drivers Setup

I'd go here. This is guaranteed to be the latest of any drivers or software you might need.

https://www.asus.com/us/ROG-Republic-Of-Gamers/ROG-SWIFT-PG279Q/HelpDesk_Download/

The CD could be behind depending on when it was made and frequency of release. That goes for any drivers. Always use the manufacturer site over a CD.