Hi guys! Does anyone have experience fixing high CPU usage on WooCommerce site? I have our WooCommerce site that hosted on Siteground Cloud hosting, we have 6 CPU+50GB SSD+16GB Ram and traffic only 25k/month. We are using Polylang plugin and have three different version from same wp admin "English" "German" and primary "Spain" and each version have almost 16K products.
I want to reduce our server cost drastically. My team super angry at me and as junior WordPress dev am not able to find out exact issue. I have already optimized site and implemented caching, lazy loading etc and achieved 90+ scores on google page speed but still high CPU usage issue is still there.
I had also made my client to migrate our site from Siteground to Vultr high frequency but there we also face high CPU usage issue. Then we remigrated to Siteground because we were facing same issue.
Please if any real genuine WordPress/WooCommerce expert can help me!
Which processes are using high CPU?
Is the CPU running high all of the time, or is it just now and again? You could look at your server logs to see if there is a surge in traffic when it happens, and also if this traffic is legitimate or bots. If it’s bots, there might be certain things you can do to block them.
You could also try and install Redis and do away with the standard transients which might help.
I have experienced this issue myself from time to time, and to be honest it’s always WooCommerce related, we never get it with any other platform or app.
Site speed does not equal low server ressources, and most of the time it’s a waste to throw any ressources after if you’re a meaningful sized website anyway.
You’re probably running a heavy store, lots of plugins and a heavy generalized theme, instead of having gone through the (painstaking) process of optimizing queries and reducing bloat. You can do that of course, but it’s not a quick fix.
“I have already optimized site and implemented caching, lazy loading etc and achieved 90+ scores on google page speed”
My concern is this sounds “too frontend.” Lazy loading images on the frontend simply isn’t going to help your server’s CPU usage that much.
Can you specify what kinds of caching you implemented? Have you set up any object caching like Redis or Memcached?
Also, have you used the Query Monitor plugin to check on slow database queries, high CPU usage processes, or any specific plugins or themes causing heavy load?