New to the forum. I have a website for my small business up and running (somewhat). I'm using the Zap theme. Up until last week, everything seemed to be running fine, but now loading takes a really long time, and sometimes it doesn't load at all. I've actual ly had clients call me and tell me they are unable to use the site at all. I know the pictures I have up aren't optimized for the web - that's something I was planning on doing later. It seemed like everything was running fine until I "fixed" an issue that Yoast SEO brought to my attention (don't remember what it was, it just said something to the effect of "X is affecting SEO performance, click to fix it") So I clicked fix, and then a day or so later the site began loading slowly. I don't know if that affected anything, but that's the only out-of-the ordinary thing I've done thus far.
EDIT: I've called my hosting company (iPage) to see if they throttled my bandwidth or something like that, they said everything's running fine. They installed W3 Total Cache and said that should help. My web designer says I should upgrade my host, because iPage is cheap and crappy? They seem to rank fairly high.
This isn't my arena, just trying to get my website performing adequately for my business. Thanks in advance for any help you can provide.