Be sure WP-Super-Cache is really working, although I think you already
have done that. You can do this looking at the last lines of the page
Refresh the source code (you can configure WP-Super-Cache to don’t log
pages for logged in users) and you will realize that the PHP
processing and database may not be the bottleneck.
I had a the same problem you are having. My wordpress sites were very
I solved this using the
http://code.google.com/intl/en-US/speed/page-speed/ to diagnostic what
were really slow. You don’t have to follow all the recommendations of
PageSpeed but you will get a great improvement if you start to use
is to set cache expiration of icons and other images properly.
really don’t know this for sure.
I have tried to do this with nginx and the only way I achieved this
was using gzip_static. I must generate the .css.gz and .js.gz files
with a script I had programmed but it works very well and I can,
without any server performance loss, use the highest gzip compression