I have seen this problem in Internet Explorer, which appears to have a memory leak. Once an instance of Internet Explorer reaches about 500 MB in size, responsiveness goes away. It is possible for experienced users to kill bloated instances of Internet Explorer in Task Manager, but this fix is not for beginners who have never opened Task Manager.
I have not seen this issue in Microsoft Edge. Slow loading ads are still sometimes a problem, but this is just
ebay shooting itself in the foot. While it is possible to suppress some ads in the hosts file, new ad web sites turn up with distressing frequency.
Another related issue is that
ebay hijacked the old My
ebay page when the
ebay Seller Hub was rolled out. I found that the
ebay All Selling page can be used in its place. The page is slower loading than the old My
ebay page, but it always loads after three or four seconds unlike the wildly erratic loading times of the old My
ebay page.