You aren't the only person having problems. I've been battling the load time on my site now for over a week. And it is has gotten progressively worse. Truth be told, I've always thought the load times for their servers were a bit sluggish... at least the one I am on.
The only major change that occured was the upgrade to the latest version of WordPress and any subsequent plugins. Other than that, it my site has remained unchanged in almost a year as far as plugins and layout.
But I've filed a complaint because my site intermittently takes anywhere from 10s to over a minute to load. I get the occassional 500 errors and if I need to update an option on the backend of WordPress... well I had better go find something else to do after I hit save. It takes several minutes to load and update the database.
First I was told that I was using too many resources... too much memory. Um... alright. My site gets about as much traffic as a four way stop in the middle of North Dakota... but okay. I'll bite...
Next they tell me it is a hung process on Apache. They restarted it.
Next they tell me that it is my site slowing things down because of all my plugins installed and that I need to install W3-Total-Cache... I had this installed before. It made no difference (yes all appropriate headers, etc were on my files and it was caching correctly). Matter of fact... having the plugin installed actually made things worse.
Next, after telling them this, the tell me yet again that a process had hung on Apache and have to restart it.
My other domain that HAD a naked install of WordPress installed took just as long to load with no plugins enabled and left with the default theme.
This is getting a bit old. My hosting is up for renewal soon. I'm half tempted to give my money to Wordpress.com or Typepad and just get paid accounts through them. All I'm doing is hosting my blog anyway. I just don't see how a hosting company can't handle a simple blog on a website and render it properly when others manage to do it flawlessly. I wanted the freedom that comes with having your own hosting account (FTP, etc) ... but even then that doesn't seem worth it if my site doesn't load.