Thread:Project:Support desk/MediaWiki WILL NOT load/reply (7)

OK, so basically you can go back to 1.22.2 as it's not related to a specific version.

MediaWiki has some debugging functionality. Another idea would be to profile a page load. Maybe that can show, where it is actually slow.

MySQL has a Slow Query Log, which lists those queries, which were slow. If the problem is in MySQL, I would expect that you (or your host) finds some queries logged there.

Maybe you can also ask your host, if he has an idea. I can tell you that for me MediaWiki runs way faster than what you get - and I have installed it on my laptop.