Simplify polygon by reduce the number of vertex
https://transparentgov.net:3200/googlemaps221/default?layer_id=0&layer=Protected+Areas+Database+of+the+United+States+%28PAD-US%29+v3.0¢er_lat=20.74591583832625¢er_long=-156.3804264886155¢er_zoom=13&url=https%3A%2F%2Fgis.usgs.gov%2Fpadus%2Frest%2Fservices%2Fpadus3%2FManager_Type%2FMapServer&overlayType=overlayType_image&panto=0&maxAllowableOffset=0
Less vertex for each polygon will take shorter time to get it
You will feel more responsive.
How much simplify is decide by a number between 0 and 1.
https://transparentgov.net/json2tree/esri/server2/folder.html?url=https%3A%2F%2Fgis.usgs.gov%2Fpadus%2Frest%2Fservices&org=USGS+Protected+Areas+PAD%2C%26nbsp%3B%26nbsp%3B&cross=default&timeout=10000&select_folder=11&select_layer=0