qml: history list: improve scrolling speed

diff --git a/electrum/gui/qml/components/History.qml b/electrum/gui/qml/components/History.qml
index 7b2782b..ff41d8a 100644
--- a/electrum/gui/qml/components/History.qml
+++ b/electrum/gui/qml/components/History.qml
@@ -23,6 +23,10 @@ Pane {
         width: parent.width
         height: parent.height
         boundsBehavior: Flickable.StopAtBounds
+        reuseItems: true
+        property bool dragScrolling: vdragscroll.drag.active
+        // keeps a buffer of delegate items outside the view, this makes normal scrolling (flicking) smoother
+        cacheBuffer: dragScrolling ? 0 : 1000
 
         model: visualModel
 
@@ -147,14 +151,18 @@ Pane {
     Connections {
         target: Daemon
         function onWalletLoaded() {
+            listview.reuseItems = false  // flush the reuseItems delegate instance pool
             listview.positionViewAtBeginning()
+            listview.reuseItems = true  // re-enable delegate instance reuse
         }
     }
 
     StackView.onVisibleChanged: {
         // refresh model if History becomes visible and the model is dirty.
         if (StackView.visible) {
+            listview.reuseItems = false
             Daemon.currentWallet.historyModel.initModel(false)
+            listview.reuseItems = true
         }
     }
 }
diff --git a/electrum/gui/qml/components/controls/HistoryItemDelegate.qml b/electrum/gui/qml/components/controls/HistoryItemDelegate.qml
index 3491a2a..769c7e4 100644
--- a/electrum/gui/qml/components/controls/HistoryItemDelegate.qml
+++ b/electrum/gui/qml/components/controls/HistoryItemDelegate.qml
@@ -13,6 +13,17 @@ Item {
     // expose delegate model for scroll indicator
     property var delegateModel: model
 
+    // reuseItems is enabled on the parent ListView. If a delegate item goes out of view it is not destroyed but
+    // stored in a pool and re-used when a new delegate is required.
+    property bool pooled: false
+    ListView.onPooled: pooled = true
+    ListView.onReused: {
+        // Variables that are not bound directly to the model have to be updated when the delegate instance is reused.
+        pooled = false
+        valueLabel.updateText()
+        fiatLabel.updateText()
+    }
+
     ColumnLayout {
         id: delegateLayout
         width: parent.width
@@ -21,6 +32,8 @@ Item {
         ItemDelegate {
             Layout.fillWidth: true
             Layout.preferredHeight: txinfo.height
+            // suppress Material press overlay, it flickers on rows during touch scroll
+            background: null
 
             onClicked: {
                 if (model.lightning) {
@@ -103,7 +116,7 @@ Item {
                     color: constants.mutedForeground
 
                     function updateText() {
-                        if (!Daemon.fx.enabled) {
+                        if (delegate.pooled || !Daemon.fx.enabled) {
                             text = ''
                         } else if (Daemon.fx.historicRates && model.timestamp) {
                             text = Daemon.fx.fiatValueHistoric(model.value, model.timestamp) + ' ' + Daemon.fx.fiatCurrency