I've been putting a pretty sizable site together for a client (~25k items, ~1k categories) for some time now.

We ran into a snag with some of the list pages, figured that the slowdown was related to the bottleneck that happens with the JSON file that parses the extra fields that we had to have displayed on the category view.

Simple solution: turn on caching.
After one slow load of the page, we were good to go again and it wasn't a huge issue.

Now I've set up their blog and it is having the same issue. The only difference is, I can't cache in the same way as I did for the other pages, and there are no extra fields to bottleneck in the JSON file.

I have an infinite scroll plugin installed. If I turn it off, things are just as bad, if not worse when I load the next page.

Has anyone else experienced this, and how did you deal with solving it/does anyone have any ideas on why this page would be loading so slowly?

Link: newpages.ohno.ws/blog

Have you checked for any PHP errors?

Also is your VPS properly configured?
Swaps, caching etc?

I get one strict standards error related to a k2 plugin that allows me to assign an item to mutiple categories.

" PHP Strict Standards: Only variables should be assigned by reference in /home/ohno/public_html/newpages/plugins/k2/k2additonalcategories/k2additonalcategories.php on line 49"


We have the same VPS setup for all of our other hosted clients, about 20 of them are using k2 (admittedly not to the same extent as this site (most are sub 500 item sites)) and have had no slowdown issues that we're aware of.

That is not an actual error I don't think this plugin is causing this.
You can always try disabling it and see it.

At this point I think you should look for slow queries or processes that use too much memory. It can a 3rd plarty plugin causing this.

We ended up figuring this one out.

If you have a ton of articles and are using the k2 plugin "additional categories" check this post out.

www.netpin.gr/forum/2-support/185-the-server-response-time-long