While the built-in WordPress RSS widget is reliable for displaying feeds, its default refresh rate can feel sluggish for fast-paced content. As WordPress developers with years of hands-on experience optimizing sites, we've streamlined this process for you. Here's a simple, proven way to customize the refresh interval.
To implement this, add the following code snippet to your active theme's functions.php file or a custom site plugin. This safely overrides the default cache lifetime without affecting core functionality.
add_filter( 'wp_feed_cache_transient_lifetime', function( $a ) {
return 600;
} );In this example, the feed cache refreshes every 600 seconds (10 minutes). Adjust the 600 value to suit your needs—say, 300 for 5 minutes—and your RSS widgets will update accordingly. Always test changes on a staging site first for peace of mind.