Hi There,
Would you mind sharing with us what tools did you use to test the site speed? Did it show what files take time to load?
I tested both of that URL with Chrome developer tool and both loads and finished within 5s (https://prnt.sc/j3juqo).
Would you mind clearing all your caching features (plugins and browser cache) to make sure that this is not a caching issue. I see that your Autoptimize plugin has 10.28 GB of cache, would you mind clearing that?
I also see that you have a few plugins that needs updating, since you already have updated your WordPress to the latest version, please update those plugins as well to avoid incompatibility issues/errors.
Remember to clear all caches (plugins, optimizer, & browser’s cache) after updating so that the code from the latest release is always in use to avoid any potential errors.
Another thing, please completely remove your old version of PRO (1.2.7), it might cause a conflict with the latest version.
I did test the site that you’re working on and that takes 35s to load (resolving those JavaScript errors can improve this loading time.). But that can be justified as you have a lot of content on your page (none of the files take time to load, its just there are a lot of files to be loaded). Your live chat widget keeps sending a ping for every 3 seconds making the page looks like not finished loading, but the truth is all files on your site already loaded.
Hope this shed some lights,
Cheers!