wpForo is designed to be very fast and work with small and large databases. However, there are many factors which may slow wpForo. Please follow to these instructions:

1.Forum Layout

If you have a large number of forums and subForums we recommend Simplified Forum layout.

2. The loopback request to your site failed

Check your website health in Dashboard > Tools > Site Health admin page and make sure you don't have WordPress loopback issue as it's described in this topic: https://wpforo.com/community/how-to-and-troubleshooting-2/slow-when-posting-a-new-topic/paged/2/#post-37642

3.Table Engines

wpForo tries to create InnoDB database tables on installation, but sometimes it's not allowed or the database is migrated from another server and tables become MyISAM. We recommend change the following tables to InnoDB (please backup all tables before this manipulation):

• wp_wpforo_forums
• wp_wpforo_posts
• wp_wpforo_topics
• wp_wpforo_profiles
• wp_wpforo_views

And make sure the following tables Engines are still MyISAM:

• wp_wpforo_likes
• wp_wpforo_visits

Here is an instruction How to change the database engine of a MySQL database table.

4. Indexes

The database table indexes are very important. You may have incorrect table structures. Please navigate to Dashboard > Forums > Tools > Debug > Tables tab and check database tables. If you see any error, please click the [Solve Database Problems] button.

5. wpForo Cache

Please make sure the following options are enabled in Dashboard > Forums > Settings > Features admin page:

• Enable Member Cache
• Enable Object Cache
• Enable Memory Cache

If you have other cache plugins, we recommend disable other caches for wpForo pages. All cache plugins should have an option to disable caching for certain page. The main wpForo page is the one which contains [wpforo] shortcode. In most case it's example.com/community/ . You should disable other cache plugins for example.com/community/* .