Hello, I suggest you to check these plugins for wordpress
1. Broken link checker
2. DUI Plugin (Delete Unused Image)
3. GZIP Output
4. WP DB Optimizer
5. W3 Total Cache

You can find them on WordPress › WordPress Plugins. Please read all of these plugins description to understand how they work.

Hope this helps.

hello zimrock ..i had the same issues...i found it was to do with the video i had on my site

have you got any videos on your site slowing it down maybe ?

sometimes its just a small thing ...good luck

Slow response times, particularly if they're intermittent, can also be caused by the server performance. Go Daddy, for example, overload their shared servers with too many sites and WordPress sites hosted on Go Daddy are notoriously slow.

If you're on shared hosting (with a company other than Go Daddy) and one of the other sites on the same server starts hogging server resources that, again, will slow down your page-load times.

For sure you should take all the steps you can to optimise your own site which means making sure your images are optimised, minimising Flash and JavaScripts, activating Gzip (or, better, implement a caching plugin), optimising your database (WP-DBManager is a good plugin for that) and using a well-coded theme.

You should also review the number of plugins you use and what they do. Plugins that need to access other sites to do their stuff (related blogs type plugins, for example) will slow down your page-load times, even more so if the other server is slow.

You should also delete (not just deactivate) any plugins that you're not using.

But if you've done all that and your site is still suffering then you will need to look at the hosting you're on.

There's no silver bullet to improving page-load times. Rather it's lots of steps that, together, will get the improvements you need.

Cheers,

Martin.