Enable GPU Acceleration in After Effects CC 2023
To enable GPU acceleration in After Effects CC 2023, look under the File menu for the Project Settings command:
GPU options are the very first available in the Project Settings window, under Video Rendering and Effects:
We recommend that you choose Mercury GPU Acceleration (Metal) on all Macs, as it provides the best performance and compatibility on any system running macOS 11.5.1 and later.