I have used meteor publish and subscribe method to interact with client and server. Now according to my scenario I am using D3 js to generate a bar chart and as soon as the data is entered in mongo db collection I am using a client side function to generate a bar chart. My issue is that publish and subscribe is too slow to react. And even if I limit the number of documents returned by mongodb, the issue still persists. It is also inconsistent i.e. it will react under 1 second sometimes and other times it will take 4-5 second. Please guide me on what to do and what is wrong with my implementation.

Here is the server side code,

Test = new Mongo.Collection("test")

Meteor.publish('allowedData', function() {
    return Test.find({});
})

and here is the client side code,

Test = new Mongo.Collection("test")
 Meteor.subscribe('allowedData');
 Meteor.setTimeout(function() {
    Test.find().observe({
    added: function(document){
        //something
    },
    changed:function(){
        //something
    },
    removed:function(){
        //something
    },
    })