diff --git a/lib/client/ingest/signal_fx_client.js b/lib/client/ingest/signal_fx_client.js
index afef86b..e7457de 100644
--- a/lib/client/ingest/signal_fx_client.js
+++ b/lib/client/ingest/signal_fx_client.js
@@ -229,10 +229,7 @@ SignalFxClient.prototype._encodeEvent = function (_event) {
 SignalFxClient.prototype.startAsyncSend = function () {
   var _this = this;
   // Send post request in separate thread
-  var datapointsList = [];
-  while (_this.queue.length !== 0 && datapointsList.length < _this.batchSize) {
-    datapointsList.push(_this.queue.shift());
-  }
+  var datapointsList = _this.queue.splice(0, _this.batchSize);
 
   if (datapointsList.length > 0) {
     var dataToSend = _this._batchData(datapointsList);