It exists! https://github.com/google/gipfeli https://github.com/google/gipfeli It was aiming for better compression than LZ4 at much higher speeds than deflate

It exists! https://github.com/google/gipfeli https://github.com/google/gipfeli It was aiming for better compression than LZ4 at much higher speeds than deflate. Now brotli and zstd on their faster settings mostly beat it in that niche.