I've recently done a one click install of Wordpress 2.3.2 under PHP 5.2.2 with extra web security.
It works but is rather slower then I would like and so I looked to activate the wp_cache plugin.
Unfortunately that slows the site up much more. Pages that were coming up in 5-10 secs suddenly take a minute to arrive. When I disable wp_cache I get back to where I was and pages load up again in 5-10 seconds.
A few people have had problems with wp_cache and so I tried WP Super Cache, but again the same things happens - very, very long page load times.
I've looked in the Dreamhost wiki but nothing in the Wordpres section seems to cover this. But I may be missing something - Wordpress and the Dreamhost panel is all pretty new to me.
Has anybody seen behaviour like this and found a way forward?