diff --git a/public/js/appChart.js b/public/js/appChart.js
index 81de4543060fcf9d5a591a561b1b97a1c689dd3c..fe00205c662cba5f9b9dca18c282f72a5cae3548 100644
--- a/public/js/appChart.js
+++ b/public/js/appChart.js
@@ -662,12 +662,19 @@ const drawScatterPlotHC = function (
   const SERIES_2_TEXT_COLOR = `rgb(${SERIES_2_SYMBOL_COLOR_RGB_ELEMENTS})`; // remove transparency from symbol color for a more "intense" color
   const SERIES_2_SYMBOL = `${PHENOMENON_SYMBOL_SERIES_2}`;
 
+  const MARKER_RADIUS = 2;
+
   Highcharts.chart("chart-scatter-plot", {
     chart: {
       type: "scatter",
       zoomType: "xy",
     },
 
+    boost: {
+      useGPUTranslations: true,
+      usePreAllocated: true,
+    },
+
     title: {
       text: CHART_TITLE,
     },
@@ -721,21 +728,24 @@ const drawScatterPlotHC = function (
       },
     ],
 
+    // legend: {
+    //   layout: "vertical",
+    //   align: "left",
+    //   verticalAlign: "top",
+    //   x: 100,
+    //   y: 70,
+    //   floating: true,
+    //   backgroundColor: Highcharts.defaultOptions.chart.backgroundColor,
+    //   borderWidth: 1,
+    // },
     legend: {
-      layout: "vertical",
-      align: "left",
-      verticalAlign: "top",
-      x: 100,
-      y: 70,
-      floating: true,
-      backgroundColor: Highcharts.defaultOptions.chart.backgroundColor,
-      borderWidth: 1,
+      enabled: false,
     },
 
     plotOptions: {
       scatter: {
         marker: {
-          radius: 5,
+          radius: MARKER_RADIUS,
           states: {
             hover: {
               enabled: true,
@@ -782,7 +792,10 @@ const drawScatterPlotHC = function (
   });
 };
 
-(async () => {
+/**
+ * Test drawing of scatter plot chart
+ */
+const drawScatterPlotHCTest = async function () {
   // Input array - building, sensor, samplingRate
   const sensorsOfInterestArr = [
     ["weather_station_521", "outside_temp", "60min"],
@@ -807,6 +820,10 @@ const drawScatterPlotHC = function (
     formatSTAResponseForLineChartOrScatterPlot(obsSensorTwoArr),
     formatDatastreamMetadataForChart(metadataSensorTwo)
   );
+};
+
+(async () => {
+  await drawScatterPlotHCTest();
 })();
 
 export {