Gnus horribly slow after upgrade to Fedora17

[Otto J. Makela]

For reasons that are beyond me, the Gnus that came with Fedora17
(version Gnus/5.13 Emacs/24.1) is terribly slow compared to the earlier
one I used with Fedora16 (Gnus/5.13 Emacs/23.3). The "g" command
(gnus-group-get-new-news) "nntp read" takes around 20× more time.

I do have to set the following in .emacs to prevent it trying to use
ssl over nntp (which is failing for some reason), but it's beyond me
if this is causing the slowdown?
        (setq gnus-select-method '(nntp "news.kolumbus.fi"
                (nntp-open-connection-function network-only)))

Any suggestions what could be wrong? What kind of debug log can I get?

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