Faceted Search of 1000+ cms listings

I built a real estate listings website, see: uppeg.com. How can I create a faceted search of by city and neighborhood only? Problem with mixitup and isotope is they cannot handle the large number of listings, they would have to essentially load all the listings onto your page and then show the ones that meet the selected criteria.

You will need to leverage a third-party search tool. Check integrations in the University.

Thanks for your reply. Which would be most economical? I was thinking maybe jetboost?

But jetboost is pretty expensive and probably more features then I need.