Features NVZ takes more time to load on map

ShivamMishra2

• I am fetching data from Layer: NVZ_2017_Combined_Waters_Final_Designations (ID: 0)  
• I am using arcgis javascript api 4.14 version 
• If I zoom in the map on zoom level 6 then only this NVZ features are displaying on map, but its taking more time to load on map.

Here is my code: 

var map;
require([
"esri/widgets/Sketch",
"esri/Map",
"esri/layers/GraphicsLayer",
"esri/views/MapView",
"esri/geometry/Polygon",
"esri/layers/FeatureLayer",
"esri/symbols/SimpleLineSymbol",
"esri/Graphic",
"esri/symbols/SimpleFillSymbol",
"esri/Color"
],
function(Sketch, Map, GraphicsLayer, MapView, Polygon, FeatureLayer, SimpleLineSymbol, Graphic, SimpleFillSymbol, Color) {
const layer = new GraphicsLayer();
const map = new Map({
basemap: "streets",