i have attached a screenshot of google speed test .in that https://mydomain.com/wp-content/plugins/ajax-search-pro/css/fants/icons/icons2.woff2 URL is under Preload key requests which is taking 1.2 second.
also if there is no solution im Ok to have a solution that does not load icons on search bar.and only the fonts will show up.(as in my knowledge i think this happens when script try to load the search icon)