Just think twice before you upgrade plans especially if it’s SiteGround.

Of course I’m an affiliate and want to make money by telling you to switch hosts, but I honestly don’t care who you use. I moved to Cloudways Vultr HF then recently to, but there are plenty of hosts that can reduce CPU usage with Cloudflare Enterprise, more resources, and efficient servers such as LiteSpeed. I don’t want to spam you and say “switch hosts” but this was the only thing that fixed it (even after upgrading plans and spending several days optimizing my site). I wrote this guide after getting frustrated with SiteGround’s CPU limits which is a common issue in Facebook Groups. Before you upgrade, talk to your host and ask if they can spare you some temporary resources while you use this tutorial to optimize your site. This can lead to a slow website, admin, and even 5xx errors. When your website uses too much CPU, it’s throttled so it doesn’t affect other websites sharing the server.

Shared hosting is known for CPU throttling (that’s why it’s so cheap). High CPU usage is often caused by plugins that constantly collect data, preload/cache expiration settings in cache plugins, as well as bots, CDNs, plugins, and WordPress Heartbeat. Welcome to the ultimate guide on reducing CPU usage in WordPress.

Ubuntu check cpu usage