Highly optimized code tends to be inelegant in any language. That said, you can get really good performance from very elegant looking “normal” Haskell too. The

Highly optimized code tends to be inelegant in any language. That said, you can get really good performance from very elegant looking “normal” Haskell too. The big challenge with performance in Haskell is that the differences between optimized and unoptimized code can be pretty subtle if you’re not used to thinking about Haskell performance.