Just straight up writing F# as if it was C# gives you similar runtime results, with sometimes shockingly less code due to how much more concise the syntax is. C

Just straight up writing F# as if it was C# gives you similar runtime results, with sometimes shockingly less code due to how much more concise the syntax is. C# and F# interop is also pretty painless if you do run into something that simply can't be done performantly enough in F#.