title: Highchart performance slow on plotting live data
body: <p>I am plotting live data in Highchart's(4.2.4) Line type chart for each second data i.e. 60 points for 1 min. and requirement is to collect each second data for long duration. I am using below code to add point in series. <strong>The number of series I have is 20</strong>. And for each series I have to add point per second. The <strong>turboThreshold set for each series is also around 2000</strong>. And <strong>slicing should be done after 1000 points</strong> data. </p>
  
  <pre><code>chart.series[0].addPoint(point, false, data &gt; 1000?shift: false, false);
  </code></pre>
  
  <p>I see a very low performance my browser keeps hanging and also chart is very irresponsive after some time. What can I do for better performance? I have tried below stuff: 
  1) Off the animation for series :</p>
  
  <pre><code>plotOptions: {
                              series: {
                                  animation:false,
                                  states: {
                                      hover: {
                                          lineWidthPlus: 0
                                      }
                                  }
                              }
                          },
  </code></pre>
  
  <p>2) Turn off animation and redrawing on addpoint to the chart </p>
  
  <p>3) Turn off markers for series</p>
  
  <p>4) Included boost.js module in application 
     <pre> script src="https://code.highcharts.com/modules/boost.js"</pre> </p>