CSRF token expired when page is left open

Hello!

When a user enters a page that has a form, if he spends a lot of time with that page open and tries reload the page, it will throw a security exception. In the app/Config/Security.php file there is an expiration set at the default 7200(2 hours). Is there any solution other than increasing these seconds so that when this time passes, and the user re-enters the page, reload the page from the beginning so as not to throws a security exception???