Wordpress LScache Plugin: High CPU usage
Last Updated on: Wed, 15 Apr 2026 00:00:02 Hi, I have a server with 8CPUs and 16GB RAM and the plugin is causing lots of issues. The latest updates seem to make the CPU to spike. When the Litespeed plugin is off, the CPU is about 0.27 however, when the plugin is on, the CPU goes to 1.60 or higher at normal use, and sometimes it gets to 9 or more with red warning, so I had to restart the server. Additionally, if you open a page, leave it open for 10 minutes or so, then re-load it, the CPU spikes and page takes a long time to load ? sometimes I had to restart the server because the plugin is using the full CPU resources. It feels the plugin goes to deep sleep and when it wakes up, it struggles and brings the server down with it. This is just one page I am talking about. I hope you can fix this issue and make sure that plugin is very light and not CPU intensive. WP Fastest Cache and WP Super Cache are very light on CPU and had no issues. Thanks Hi, please provide the report number you can get it in toolbox -> report -> click send to LiteSpeed Best regards, Hello, I have the same problem at selidbe beograd stosic websiteselidbe beograd stosic website. Just i have a little bit less cores on that server and RAM also. I am not sure how should i send you all the settings properly. Please let me know, i think that i have enterprise licence. Besides that, i have excellent pagespeed result, for me and this theme i think that with any other plugin or mix of plugins this would be undoneble :). Ok so the result is 100 for mobile and 100 for desktop. You can check it out here https://developers.google.com/speed/pagespeed/insights/?hl=EN&url=https%3A%2F%2Fwww.selidbe-stosic.com%2F&tab=mobile so guys congratulations on a great and professional plugin! Only a few more things: On a link for pagespeed results there are elements in red, do you know why and can i maybe fix them somehow? Largest Contentful Paint image was not lazily loaded Above-the-fold images that are lazily loaded render later in the page lifecycle, which can delay the largest contentful paint. Learn more. And the other one which is strange because i have turned on in LS Cache settings to put width and height but i suppose that this is some theme/plugin related issue, maybe just like the first one? Element Selidbe Beograd Prevoz i Selidbe Srbija Image elements do not have explicit width and height Set an explicit width and height on image elements to reduce layout shifts and improve CLS. Learn moreCLS
LiteCache Rush: Speed comes from using less, not from doing it faster
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