I've been told a WP-install can easily consume 2 Gigs of memory when editing in visual composers in WP. When my Pi only has 4 GB available and on top on that I'm running MariaDB (NOT Nginx), then there really shouldn't be much RAM left for anything else should there?
Or did I get bad advise and is WP perfectly capable of running fast on efficiently on MariaDB and an RPi 4 ?
And if not: What is there of better alternatives to running a webserver on a PI? Preferably a CMS of some sort.