Hi @danisadiufl, sorry to see you’re having speed issues.
Whilst we are constantly working on making the plugin faster, perform better, and use less resources, there are not set amounts of RAM, CPU or database queries that we know Wordfence will definitely require in each use-case or hosting environment. The cases of slow-down are small in relation to the quantity of customers using Wordfence, but does crop up from time to time with certain configurations or larger databases/number of installed plugins.
For a screenshot of my recommended Performance setting options – Click Here.
You could also set max_execution_time = 60 in php.ini, Wordfence’s scan only ever attempts to use half of this value by default.
Your WP_MEMORY_LIMIT should be set to 128M or 256M in wp-config.php. WooCommerce, for example, recommend 64M minimum, so if you also have many hits on the site at once especially during a Wordfence scan, a lower limit here could be reached fairly easily. Your PHP memory_limit value should be set to 128M or 256M also to accommodate this change otherwise there won’t be enough room for WordPress to use the higher value it is requesting.
Aside from this, if there are any load-balancers or other APIs running on your server such as Litespeed or Cloudflare, you could check if these are contributing in any way to the slow loading times. Your PHP/server error logs could also point to whether anything is failing or timing out in the background.
Let me know what you find out!
Peter.
