Why does Cygwin execute shell commands very slowly?

Question

Just tests a very simple command like:

while true; do bash -c \"echo hello\"; done

You will find how much slow the bash in Cygwin is. Does

Answer 1

I was able to fix this problem by uninstalling bash-completion and switching from Kaspersky to Windows Security Essentials. (I diagnosed the Kaspersky interference using Process Explorer while running the "echo Hello" benchmark.) Brought my benchmark time from 7 seconds to 0.2.