Dynamically generating high performance functions in clojure

Hamza Yerlikaya has already made the most important point, which is that Clojure code is always compiled. I'm just adding an illustration and some information on some low-hanging fruit for your optimisation efforts. Firstly, the above point about Clojure's code always being compiled includes closures returned by higher-order functions and functions created by calling eval on fn / fn* forms and ind