Mobile Usability issues detected

I received email today from google that “Clickable elements too close together”
After looking at search console, found out that Google crawler is trying to access Location (/location/) without country/state/city. it is causing it to load 9k listings on the map hence the map icons are too close to each other.
My current location page is using following shortcodes
[gd_notifications]
[gd_categories]
[gd_search]
[gd_listings post_limit=10 add_location_filter=’1′]
How can I control how many listing markers are displayed on map when location page is displayed?
Default map on location page where is it coming from, I dont see a map short code.