CComment docs

Generally the comments for com_content (Article manager) are loaded using the onAfterContentDisplay event. There are other plugins that use this event to display information related to a particular article. That is why the plugin order in the Plugin Manager is important. If you find yourself in a situation where particular information was showed below the article, but once you enable the comments, this information is being moved below the comments navigate to your Joomla backend -> Extensions -> plugin manager -> sort the plugins by order and move the plugins that you want to be displayed before the comments up in order. This question was asked on our ticket system and you can find it over here.