If the question is speed then the answer is SVT-AV1. It already does well versus libvpx VP9 and x265 HEVC: https://medium.com/@ewoutterhoeven/av1-is-ready-for-

If the question is speed then the answer is SVT-AV1. It already does well versus libvpx VP9 and x265 HEVC: https://medium.com/@ewoutterhoeven/av1-is-ready-for-prime-time-svt-av1-beats-x265-and-libvpx-in-quality-bitrate-and-speed-31c1960703db https://medium.com/@ewoutterhoeven/av1-is-ready-for-prime-ti... rav1e has a ways to go to match it.