>>11
There's a design issue involved. When you launch an app, it calls fifty layers of half-compatible libraries, frameworks and technologies carrying 30 years of UNIX legacy.
Just do like all the cool kids do, pretend that it's fast anyway so that more suckers try Linux on the desktop and then pretend the same.
If you keep lying to yourself, in less that three months, you'll forget that when you used to launch Explorer and Notepad (or the Finder and Textedit) they appeared immediately.