bug#24284: Few seconds hang on startup, even with emacs -Q

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"J. Braden Chancellor" <jbradenchancellor@protonmail.com> writes:

> Whenever I open a file, Emacs hangs for a few seconds on the *scratch* buffer 
> before proceeding to the file. The hang is about two seconds on my very fast 
> desktop,
> about four seconds on my fast phone, and about six seconds on the decent 
> servers I SSH into over satellite. It occurs whether I open the file normally 
> (emacs
> test.txt), open it as a client of the daemon (emacsclient test.txt), or open 
> it without an init file (emacs -Q test.txt). I've encountered this problem on 
> four systems so
> far: a desktop running Bash on Ubuntu on Windows (emacs24-nox 24.3.1), a 
> phone running Ubuntu via Termux on Android (emacs 25.0.95-1), a server running
> Ubuntu (emacs24-nox 24.5-1), and a server running Arch (emacs-nox 24.5-4 AND 
> emacs25-git 25.1.r125112-1). I haven't seen it on my Fedora desktop (emacs-nox
> 25.1-0.2.rc1.fc24) or when using the unofficial emacs-w64 Windows client 
> (emacs 25.0.94.2). I have already tried emacs -Q, completely removing my 
> .emacs and
> .emacs.d, mucking about with my /etc/hosts, etc, and building Emacs from 
> source. The only way to avoid the issue is to minimize Emacs (C-z), restore 
> it (%emacs),
> and manually open the file I want to edit (C-x C-f). While it isn't a huge 
> problem when staying around in a few files for a while, the seconds really 
> add up when making a
> lot of small edits to many different files.

If you M-x toggle-debug-on-quit and then C-g during the pause do you get
a backtrace?