Speed up the page with 80,000 markers on google map
<p>I want to load 80,000 markers on google map, I have functions, setMarkers() and createMarker(). It is taking very long time to load. How can I speed the page?</p>

<p>code is below:  </p>

<pre><code>function initialize() {
    //markers details are coming from json file
    setMarkers(map, markers);
}
function setMarkers(map, locations) {
    //from location object, all the variables get values
    //infobox code
    //loop starts for all markers
    createMarker( arguments );
    //loop end for all markers
}
function createMarker( arguments ) {
    //marker creation code
}
</code></pre>

<p>Also is it possible to increase speed using google map purchased API key?</p>