Faster Dlang Execution

[seany]

Hello

How can I increase the speed of executable files created via :

`dub build -b release`

I am unable to parallellise all of it, as it depends on part of 
the result being calculated before something else can be 
calculated.

I have many `nonsafe, nonpure` functions. Classes are virtual by 
defalut. Profiling doesn't help, because different input is 
causing different parts of the program to become slow.

Thank you.