In some cases, you may want to only enable a plugin and load the relative files on some specific pages. For example, if your website has a gallery page, you may want to only enable the gallery plugin on this page, thus speed up the loading of other pages.
To accomplish this, you can use one of the following two free WordPress plugins.
1. Plugin Organizer
Plugin Organizer can change the order that the plugins are loaded, disable a plugin by default then enable it on specific pages, or enable a plugin by default then disable it on specific pages.
The plugin also supports enabling/disabling plugins based on user roles, post types etc.
You can download the plugin from the WordPress.org repository https://wordpress.org/plugins/plugin-organizer/.
2. Plugin Load Filter
The plugin supports the following features:
- Support Post Format type
- Support Custom Post type
- Support Jetpack Modules filtering
- Support WP Embed Content card (is_embed template)
- Support Simple Post Language Locale switcher