Wordpresscritical error and loading speed

Critical error: 3 critical errors An active PHP session has been detected Performance A PHP session has been created by the call to the function session_start(). This interferes with the REST API and return requests. The session should be closed session_write_close()before making any HTTP requests. The REST API has encountered an error Performance The REST API is a way that WordPress and other applications communicate with the server. An example is the block editor screen, which relies on this to display and save your posts and pages. Ha fallado la solicitud a la API REST debido a un error. Error: cURL error 28: Operation timed out after 10001 milliseconds with 0 out of -1 bytes received (http_request_failed) Background updates are not working as expected Safety Background updates ensure that WordPress can update automatically if a security update is released for the version you are currently using. ErrorThe constant WP_AUTO_UPDATE_COREis defined and activated. Approved Version control systems have not been detected. Approved Your WordPress installation does not require FTP credentials to perform updates. Approved All your WordPress files are editable. ErrorWordPress security and maintenance updates are blocked by define( 'WP_AUTO_UPDATE_CORE', false );.