After compiling Hello World with DMD Compiler, .EXE file takes 1-3 seconds to run for the first time

[BoQsc]

I use Windows 10.
I tried exactly like mentioned here:
http://ddili.org/ders/d.en/hello_world.html

It seems strange that on the first run after D language 
compilation. Hello World program takes 1-3 seconds to launch.

While C Hello World program simply executes in a second or less.

Why is that, and what can we do about it.