Welcome to the club. :lol:
Wordpress is a pretty bloated script. Each based on a default installation of Wordpress 3.x, each pageview required the inclusion of 76 PHP files. That means the server has to seek, read, and load into memory 76 files for each request. That's a lot and if a server is overloaded, it isn't going to perform well.
Go Daddy has a new majority owner as of last June. I thought maybe paying over $2 billion for a majority stake in the company with the worst reputation for web hosting in the industry, that the new owner would invest to make things better. After one year it doesn't look that way.
Go Daddy did that "it's your fault" crap to me when I complained of extremely slow loading times. They had me do crap like clear my browser cache, do a traceroute, etc. Pageloads for an SMF forum I was using were taking 30 seconds to load a page. The timer built into SMF output the page creation time at the bottom, it was taking 20 seconds for the script to run during peak times of the day.
On another board I visited in the past, the webmaster(s) had posted about how Go Daddy advised them to delete forum posts to make the site load faster. So they trashed thousands of their posts and it didn't help at all.
I wasted hours with them, too. I'm sure you will find hosting your sites with a better company is much less stressful.