arcgis for javascript往地图插20000以上个点很卡怎么处理？？

<p>调用一下代码往map插2W以上个点会很卡，有没有办法解决啊？主要是点位都不固定的，根据查询条件目前查出最多的数就是2W多条，以后还会增加，而且点位数量不固定，不好配置成shp静态的查询。</p>

<p>&nbsp;</p>

<p>var pointGLyr = new esri.layers.GraphicsLayer({&quot;id&quot;:&quot;gLyr&quot;});&nbsp;<br />
map.addLayer(pointGLyr);&nbsp;</p>

<p><br />
var url = &quot;/project/images/map/point.png&quot;;<br />
var pt = new esri.geometry.Point(jingdu,weidu, new esri.SpatialReference({ wkid: 4326 }));<br />
var pms = new esri.symbol.PictureMarkerSymbol({<br />
&nbsp; &nbsp; &nbsp; &quot;angle&quot;: 0,<br />
&nbsp; &nbsp; &nbsp; &quot;xoffset&quot;: 0,<br />
&nbsp; &nbsp; &nbsp; &quot;yoffset&quot;: 0,<br />
&nbsp; &nbsp; &nbsp; &quot;type&quot;: &quot;esriPMS&quot;,<br />
&nbsp; &nbsp; &nbsp; &quot;url&quot;: url,<br />
&nbsp; &nbsp; &nbsp; &quot;contentType&quot;: &quot;image/png&quot;,<br />
&nbsp; &nbsp; &nbsp; &quot;width&quot;: 12,<br />
&nbsp; &nbsp; &nbsp; &quot;height&quot;: 12<br />
});&nbsp;<br />
var gImg = new esri.Graphic(pt,pms,item);&nbsp;<br />
pointGLyr.add(gImg);&nbsp;</p>