flot animator crashes on large dataset

HTML

<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.3/jquery.min.js"></script>
<script src="https://rawgit.com/flot/flot/master/jquery.flot.js"></script>
<script src="https://rawgit.com/Codicode/flotanimator/master/jquery.flot.animator.min.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/flot/0.8.3/jquery.flot.time.js"></script>
<div id="chart1" style="width: 540px; height: 250px;">

JavaScript

var options = {
  "xaxis": {
    "mode": "time",
    "timeformat": "%d/%m"
  },
  "yaxes": [{
    "position": "left",
    "min": 98,
    "max": 100,
    "tickSize": 1
  }, {
    "position": "right",
    "min": 0,
    "max": 2
  }],
  "series": {
    "lines": {
      "show": true,
      "lineWidth": 3
    },
    "curvedLines": {
      "apply": true
    }
  },
  "colors": ["#008C00"],
  "legend": {
    "show": false
  },
  "grid": {
    "hoverable": true,
    "clickable": true
  }
};

var data_ajax = [{
  "lines": {
    "show": true,
    "lineWidth": 3
  },
  "points": {
    "show": false
  },
  "threshold": {
    "below": 99.53,
    "color": "#CC0000"
  },
  "data": [{
    "0": 1451433600000,
    "1": 99.5
  }, {
    "0": 1451437200000,
    "1": 99.51
  }, {
    "0": 1451440800000,
    "1": 99.48
  }, {
    "0": 1451444400000,
    "1": 99.46
  }, {
    "0": 1451448000000,
    "1": 99.46
  }, {
    "0": 1451451600000,
    "1": 99.46
  }, {
    "0": 1451455200000,
    "1": 99.48
  }, {
    "0": 1451458800000,
    "1": 99.46
  }, {
    "0": 1451462400000,
    "1": 99.43
  }, {
    "0": 1451466000000,
    "1": 99.42
  }, {
    "0": 1451469600000,
    "1": 99.37
  }, {
    "0": 1451473200000,
    "1": 99.35
  }, {
    "0": 1451476800000,
    "1": 99.4
  }, {
    "0": 1451480400000,
    "1": 99.38
  }, {
    "0": 1451484000000,
    "1": 99.41
  }, {
    "0": 1451487600000,
    "1": 99.41
  }, {
    "0": 1451491200000,
    "1": 99.42
  }, {
    "0": 1451494800000,
    "1": 99.43
  }, {
    "0": 1451498400000,
    "1": 99.43
  }, {
    "0": 1451502000000,
    "1": 99.41
  }, {
    "0": 1451505600000,
    "1": 99.4
  }, {
    "0": 1451509200000,
    "1": 99.41
  }, {
    "0": 1451512800000,
    "1": 99.41
  }, {
    "0": 1451516400000,
    "1": 99.44
  }, {
    "0": 1451520000000,
    "1": 99.44
  }, {
    "0": 1451523600000,
    "1": 99.44
  }, {
    "0": 1451527200000,
    "1": 99.44
  }, {
    "0": 1451530800000,
    "1": 99.43
  }, {
    "0": 1451534400000,
    "1":...