The current decode time (on a lower end ARM CPU) is approx 1 megabyte per second. This of course will increase as the format is finalized and better&#x2F;more optimized decoders are written for it. As well as with CPU speeds increasing. Though even at the current rate it should be fast enough in almost any real world scenario. A 1080p video on youtube is about 260-320 kilobytes per second. So as long as video quality doesn&#x27;t demand 3-4 times what we are currently getting from HD video online, it should decode faster than it matters. Plus the whole video is available as it downloads in a lower resolution. It just gets clearer the longer it plays. Which is a much better experience than GIF&#x2F;APNG&#x2F;BPG&#x2F;WebP and even MP4 in use as a GIF replacement. Though the MP4 will almost certainly be visually as good of quality at a consistently much smaller filesize due to H.264&#x27;s fantastic lossy compression.