I am moving horseadvice.com to a Wp CMS using GeneratePress. Currently it is being built at horseadvice.rnoglesby.com. The site has over 100,000 pages of which about 700 need to be a nested drop down navigation menu in the sidebars. The default Wp/GP menu options appear to load the whole menu in the html then use css styles for display. This would appear to be a huge server load when each page accessed by the users needs to download this data. I cannot find a plugin that seems to use different techniques. Currently on horseadvice.com I have a jscript on each page that makes a call to a cached js sheet so that after the first download the menu’s server load is minimal (DHTNL Menu Builder). Is there such a plug in or has anyone tried proprietary menus software based on a similar idea?
It is helpful to know what might be the limits before I go down a path hard to recover from. Perhaps I should be asking a more general question. Assuming Bluehost will provide adequate storage and bandwith will Wp/Gp be able to handle peak requests of about 600 pages and 200 megabytes an hour?