Throttle the SearchWP indexer by injecting a wait time in between indexer passes

gistfile1.php

<?php

// inject a 1 second throttle to the SearchWP indexer process to reduce server load
function my_searchwp_indexer_throttle( $wait_time ) {
	return 1;
}

add_filter( 'searchwp_indexer_throttle', 'my_searchwp_indexer_throttle' );