An update for Pixel 2 and Pixel 2 XL rolling out now finally enables the Pixel 2 Visual Core that has remained dormant since launch. The activation should reduce the load on the CPU, while also helping to boost processing times and reduce battery consumption simultaneously.
https://www.notebookcheck.net/Pixel-2-Visual-Core-to-finally-gets-enabled-with-latest-update.281572.0.html