AudioVisualizer: Low vs High Quality via setting.

Widgets/AudioSpectrum/NLinearSpectrum.qml

@@ -17,6 +17,7 @@ Item {
   readonly property int valuesCount: (values && Array.isArray(values)) ? values.length : 0
   readonly property int totalBars: valuesCount * 2
   readonly property real barSlotSize: totalBars > 0 ? (vertical ? height : width) / totalBars : 0
+  readonly property bool highQuality: (Settings.data.audio.visualizerType === "low") ? false : true
 
   Repeater {
     model: root.totalBars
@@ -33,7 +34,8 @@ Item {
       color: root.fillColor
       border.color: root.strokeColor
       border.width: root.strokeWidth
-      antialiasing: true
+      antialiasing: root.highQuality
+      smooth: root.highQuality
 
       // Only update when value actually changes - reduces GPU load
       width: vertical ? root.width * amp : root.barSlotSize * 0.5

Widgets/AudioSpectrum/NMirroredSpectrum.qml

@@ -17,7 +17,7 @@ Item {
   readonly property int valuesCount: (values && Array.isArray(values)) ? values.length : 0
   readonly property int totalBars: valuesCount * 2
   readonly property real barSlotSize: totalBars > 0 ? (vertical ? height : width) / totalBars : 0
-
+  readonly property bool highQuality: (Settings.data.audio.visualizerType === "low") ? false : true
   readonly property real centerY: height / 2
   readonly property real centerX: width / 2
 
@@ -38,7 +38,8 @@ Item {
       color: root.fillColor
       border.color: root.strokeColor
       border.width: root.strokeWidth
-      antialiasing: true
+      antialiasing: root.highQuality
+      smooth: root.highQuality
 
       width: vertical ? barSize : root.barSlotSize * 0.8
       height: vertical ? root.barSlotSize * 0.8 : barSize

Widgets/AudioSpectrum/NWaveSpectrum.qml

@@ -46,7 +46,9 @@ Item {
   Canvas {
     id: canvas
     anchors.fill: parent
-    antialiasing: true
+    antialiasing: false // Disable for better performance - shape is smooth enough without it
+    renderStrategy: Canvas.Threaded // Render in separate thread to reduce main thread load
+    renderTarget: Canvas.FramebufferObject // Use FBO for better performance
 
     onPaint: {
       var ctx = getContext("2d")