macbre

This extension has been inspired by http://devel.kostdoktorn.se/cache-translation-object and gives up to 5x speed increase when using WordPress with “custom” (i.e. non English) localisation files.
MO object created by WordPress is cached and stored in the <code>/wp-content/cache/</code> directory and then used when loading localisations.

l10n cache

Improves site performance by providing caching for localisation objects (*.mo files).

John Clause

Enables <a href="https://wordpress.org/plugins/qtranslate-x/" rel="ugc">qTranslate-X</a> multilingual framework for plugin <a href="https://wordpress.org/plugins/js-composer-qtranslate-x" rel="ugc">WPBakery Visual Composer</a>.
At least version 3.3 of <a href="https://wordpress.org/plugins/qtranslate-x/" rel="ugc">qTranslate-X</a> or <a href="https://github.com/qTranslate-Team/qtranslate-x/archive/3.2.9.9.4.zip" rel="nofollow ugc">alpha pre-release</a> is required.
This plugin is currently a work in progress, please review the <a href="https://wordpress.org/plugins/js-composer-qtranslate-x/other_notes/" rel="ugc">Known Issues</a> and report the features, which did not work for you.
<h3>Known Issues</h3>

WPBakery Visual Composer & qTranslate-X

Enables multilingual framework for plugin "WPBakery Visual Composer".

l10n cache vs WPBakery Visual Composer & qTranslate-X