Modify the LIMIT start of the SearchWP query

gistfile1.php

<?php

function my_searchwp_query_limit_start( $start, $page, $engine ) {
	
	if ( 'default' == $engine && 10 == $page ) {
		$start = 100;
	}
	
	return $start;
}

add_fitler( 'searchwp_query_limit_start', 'my_searchwp_query_limit_start', 10, 3 );