The slow responses on your account are due to CPU usage, which is attempting to do more than a shared hosting environment is typically capable of. We are working to keep the site active, while preventing any other accounts on your server from being affected.
While Throttling can occasionally speed up site performance that does not appear to be the case on your account. In this case the CPU core we've moved your account to is not enough to handle your accounts' needs.
I recommend removing any plugins, modules or extensions you don't need and enabling caching on your scripts. The wp-super-cache plugin, for example, is excellent for reducing CPU usage on WordPress installations, while providing faster responses even for those not experiencing Throttling.
If you are unable to reduce CPU usage on the account and are unable to tolerate the slowdown you're experiencing your only option is to upgrade to a VPS or dedicated hosting solution, which we do not provide. You can find options for that type of service through a simple Google search.
If you'd like you can read more about CPU Throttling at http://www.mattheaton.com/?p=208
Thank you,
Jeremy
Level I Tech Support Engineer
BlueHost.com
888.401.4678