SmartCrawl timing out and missing URLs in sitemap

The site includes over 4 000 of BuddyPress Members and thousands of properly listings that are created by the a dedicated plugin (IDX). The SmartCrawl seo crawl is timing out and only includes around 200 URLs in the sitemap. There’s some realtors but no property listings.

Those listings are not custom posts. They seem to be “virtual pages”. Is there any way to exclude them from crawl (e.g. by “url pattern”:wink:? Or – how to fix that timeout?