We have an WP website in Avada theme. That has now got query strings added on each url - [url removed, login to view] . The guy working on it said all he did was: "I tried to revise the homepage to a previous point and 2. I added something to the theme options header. That's it. And I put that code back in to the code sections of theme options". That is the first thing.
2) I had a developer on Freelancer who job was to put the images, css and js on sub domains for the above website plus 3 country subdomains. This to load up page speed. The images have been put but the css and js has not.
3) I need the websites optimising as well for page speed.
I will put a token amount up for the query string removal and I need to know what price you can do the extra work for.