Store Locator Plugin Guide
Load on Bound Feature
Agile Store Locator supports two types of data (markers) loading on a page. The first option is "Load all" which is the default selection, the second option is "Load on Bound". Furthermore, the "Load on Bound" feature enables your store locator to only load stores that are visible in the "Map View". However, the rest of the markers will not be fetched or loaded on the map. As a result, you save a lot of extra processing time when you have too many markers using this feature. "Load on bound" should only be used with more than 1000+ markers in different regions of the Google Map.
"Load All" with value "0" will enable the "Load on Bound" feature