I recently had the problem that my VLC Media Player took about a minute to start. First I didn't know what caused the problem until I remembered that I imported my Music Library into VLC, so it always scanned the whole Library to import the meta data.
To disable the Media Library do as follows:
- Open: Tools -> Preferences
- Under Show Setting select "All" to show all settings
- Go to: Playlist
- Uncheck "Use Media Library"
- Click "Save" to finish
Now your VLC should start up quickly again.