there, My wordpresss network appears to be running slow.

Hi there,

My wordpresss network appears to be running slow. I'll be making it live by the 30th April.

I also have the caching plugin installed, but have it turned off at the moment, as every time I update it, I have to delete the cache in order to see the update.

Is there any way to make it run faster? I'm trying to add a menu item and it comes up with the loading icon, then stalls...