Compressing Brotli at the highest setting is so slow gzip -9 is practically invisible from the graph! Brotli at level 11 is not feasible for dynamic content Brotli at level 5 is competitive with gzip and produces files that are even smaller than gzip -9 Zopfli is really slow, for large files it can take 4× the time of Brotli 11. Brotli is not easy to adopt today Another complication with Brotli is