(Yes, I know that one parameter controls multiple different settings internally, so there are multiple dimensions if you're willing to dig that deep.)
Anyway, my recollection from looking at benchmarks a while ago: zstd used at similar ratios to lzma compresses in similar time but decompresses much faster, and it's also faster than gzip when set to comparable ratios to that. lz4 is still faster than the fastest zstd modes, and lzma at the most extreme settings still gets better ratios that the best zstd can do. But there's a huge wide swath in the middle where zstd beats them all, and that's quite valuable.