My WordPress website is slow, how can I speed it up?

There are two basic ways to increase the speed of any website:
Increasing the speed of the application part
Increasing the speed of resources
Increasing the speed of the application part relates to only speeding up the functioning of the application, website code, functions, database performance, file optimization, and similar actions, which can reduce the number of resources used.
Increasing the speed of resources is related to the server, or hosting of a website. WordPress is known for using a lot of resources, so a greater amount of RAM and CPU power is required to successfully host larger websites. In case you have shared hosting, other websites on that server can pose a problem, and in case of a virtual server try to rent servers with a minimum of 4GB of RAM, so you avoid any problems in the future as your website is developed further
Keep in mind that the number of plugins and amount of content influences the performance.