The wiki mentions that the original reference encoder was not optimized, and did not perform well: https://en.wikipedia.org/wiki/AV1#History https://en.wikiped

The wiki mentions that the original reference encoder was not optimized, and did not perform well: https://en.wikipedia.org/wiki/AV1#History https://en.wikipedia.org/wiki/AV1#History "While still working on the format, the encoder was not targeted for production use and speed optimizations were not prioritized. Consequently, the early version of AV1 was orders of magnitude slower than existing HEVC encoders. Much of the development effort was consequently shifted towards maturing the reference encoder. In March 2019, it was reported that the speed of the reference encoder had improved greatly and within the same order of magnitude as encoders for other common formats." Other encoders also exist that are much faster, listed in a different section of the wiki. https://en.wikipedia.org/wiki/AV1#Software_implementations https://en.wikipedia.org/wiki/AV1#Software_implementations I didn't know about Sisvel and the hardware design problems, although Sisvel is in the wiki. The specific license fees that you listed are interesting. https://en.wikipedia.org/wiki/AV1#Patent_claims https://en.wikipedia.org/wiki/AV1#Patent_claims