WordPress auto save period is 60 seconds. It can be modified by adding this line on the the wp-config.php file. The duration is in seconds and can be increased or decreased as per users choice.
define( ‘AUTOSAVE_INTERVAL’, ’15’ );
Handy WordPress Tips: How to Modify Auto Save Duration of The Editor
About Mohammad Shoeb
Hi, I'm Shoeb. I've been fortunate to work with WordPress for over a decade and I'm continuously learning from this journey. Alongside some wonderful people, I help run Elicus in Jaipur. Our aim is to make WordPress tools that are simple and helpful.