I'm running my (girfriend's) blog on a slow Sempron computer. It users Wordpress 2.9.1 and Atahualpa 3.4.5. Apache has no extras installed, apc for php is enabled, wp-super-cache is installed.
But I still get some poor performances, then caches gets filled (see the attachment). I believe storing the css and js as static files would eliminate the continuous execution of the php script and resending the content with 200 instead of 304 code.
The idea is: when you click on "Save changes" in Atahualpa options the static css and js files gets generated instead of calling a php script.
Would you consider implementing this?