Why is my wp blog loading slow?

Well if they dont take your offer then my suggestion to the OP is to remove all plugins. Then see if the page loads fine. If so then start adding the plugins one by one and testing site performance. So if you remove all plugins, it loads just fine you know its a plugin issue. Then loading a single plugin, then testing and you come across a plugin that causes this issue then you have your problem. Its not like OP is going to hurt their traffic right now, because no one is going to wait this long for their site to load outside of troubleshooting.

There are a lot of site tuneups they can do, though its wordpress so your confined to wordpress rules. In general though some are easy, some are more advanced:

- Put all styling in a css file
- Put all javascript in a js file
- Put js files in footer of site, only if its allows. Some may require to load in header. You can try using the defer or asynch tag on js files as newer browsers support this, but can mess up the page because some js code needs to load in order
- Sprites, which allow for caching of multiple images in one as well as reduce the amount of items having to load. So if you have 5 images that can merge into one, though the size of the image increases, instead of 5 separate downloads your browser has to perform, its just one and it caches its. By default browsers only have a couple of pipes open to download the files to load your site, I believe most just have 2 pipes

Then some more advanced, I dont mention everything here because I dont have all day:

- Using sub domains to load css/js and even images. By doing this you open additional pipes to download files, thus speeding up page load. However you have to balance this as to many can cause a negative affect/more latency. As it has to resolve/lookup the domain/sub domain etc.

- Caching. There are multiple ways of caching including file caching or memory caching. File caching obviously you save the html output to a file and load the file next time instead of building it out, though this can cause issues such as multiple people accessing the process of caching at the same time, expiration etc. Memory caching such as using memcache in php or using a nosql database like redius. This is the fatest because the info is stored in memory rather than the hard drive. You could store database results in memory so that instead of hitting the database you can hit the memory lowering your db load. Of course there are problems such as memory getting reset/lost. That is why I mentioned redius, its a little more powerful than memcache, at least IMO.

- Minfying. So going back to reducing the amount of items downloaded, you can combine stylesheets into one as well as js files. This again reduces the amount of files the browser has to download.

Obviously there are a lot more tips/techniques to speed up your site including better hardware such as more memory and using SAS hard drives with 15k rpm in a raid config for faster read/write access. Or you can go to SSD which has no moving plates, but from my research has some problems when doing a lot of writes.

Just so much you can do, obviously places like godaddy restrict you from doing some of this stuff, but if you had your own dedicated box you can do all of this.