Intel has launched a new set of drivers for its mobile and desktop Arc graphics cards. It focuses heavily on DX9 titles such as CS:GO, League of Legends and Starcraft 2, and claims to deliver a hefty performance uplift over previous versions. https://www.notebookcheck.net/Intel-Arc-3959-driver-update-delivers-up-to-a-1-79x-performance-uplift-in-certain-DX9-titles.673132.0.html
OMG they're actually calling a 2% increase 1.02x increase, and you're following suit. Shame on you.