In some cases, you may want to process a feed asynchronously. The gform_is_feed_asynchronous filter will allow you to do so.
The following would apply to all forms.
add_filter( 'gform_is_feed_asynchronous', '__return_true' );
This code should be placed in the functions.php file of your active theme.
This filter is located in class-gf-feed-addon.php