Your keys are correct. It looks like you use both WooCommerce and WPML, both of which are database-intensive plugin systems.
I suggest you start using a persistent object cache; it may make your site more responsive by avoiding the repetition of database operations.
This one, by me, should work for you. https://wordpress.org/plugins/sqlite-object-cache/ It’s possible your hosting provider also offers one.
Hi Ollie,
thanks for answer, I’ll try your plugin, on my server I have memcached and opcache php extensions enabled, hope this help; or I must have more options enbled on server?
The memcached extension (and the redis extension) both enable access to a separate cache server. If you use a hosting service, they may, or more likely do not, offer a memcached or redis server you can use with those extensions. The SQLite Object Cache I mentioned does not require a separate cache server.
The opcache subsystem is part of php.
