The booking system is a plugin that has been made & tested to work on a server that has the minimum requirements for WordPress to work.
3.8 or higher
7 or higher
5.6 or higher
3.2 or higher
CURL version (necessary for TLS security protocol)
CPU usage may increase when the plugin is activated/updated or the translation is automatically repaired.
If you intend to use the booking system plugin with a huge amount of data (thousands of calendars), we recommend you have a VPS hosting or a dedicated server.