Perhaps the MANIAC/CABAC decoding or encoding is computationally more intensive compared to the others? Concerning lack of support, just like with the BPG decod

Perhaps the MANIAC/CABAC decoding or encoding is computationally more intensive compared to the others? Concerning lack of support, just like with the BPG decoder you could generate the Javascript through Emscripten so any javaszcript enabled browser can view them. Personally an even more efficient lossy image compressor would be great (getting my avatar down to 1K and still sharp). When using diagrams or text the mozjpeg artifact eraser is adequate.