diff --git a/src/plugins/qmldesigner/components/componentcore/modelnodecontextmenu.cpp b/src/plugins/qmldesigner/components/componentcore/modelnodecontextmenu.cpp
index 415127cb529..c0dea6b3c5b 100644
--- a/src/plugins/qmldesigner/components/componentcore/modelnodecontextmenu.cpp
+++ b/src/plugins/qmldesigner/components/componentcore/modelnodecontextmenu.cpp
@@ -63,7 +63,7 @@ void populateMenu(QSet<ActionInterface* > &actionInterfaces,
 
     actionInterfaces.subtract(matchingFactories);
 
-    QList<ActionInterface* > matchingFactoriesList = matchingFactories.toList();
+    QList<ActionInterface* > matchingFactoriesList = Utils::toList(matchingFactories);
     Utils::sort(matchingFactoriesList, [](ActionInterface *l, ActionInterface *r) {
         return l->priority() > r->priority();
     });
@@ -100,8 +100,7 @@ void ModelNodeContextMenu::execute(const QPoint &position, bool selectionMenuBoo
 
     manager.setupContext();
 
-     QSet<ActionInterface* > factories =
-             QSet<ActionInterface* >::fromList(manager.designerActions());
+    QSet<ActionInterface* > factories = Utils::toSet(manager.designerActions());
 
      populateMenu(factories, QByteArray(), mainMenu, m_selectionContext);
 
diff --git a/src/plugins/qmldesigner/components/formeditor/formeditorscene.cpp b/src/plugins/qmldesigner/components/formeditor/formeditorscene.cpp
index 045aec90074..71d86712961 100644
--- a/src/plugins/qmldesigner/components/formeditor/formeditorscene.cpp
+++ b/src/plugins/qmldesigner/components/formeditor/formeditorscene.cpp
@@ -39,6 +39,7 @@
 #include <QGraphicsView>
 
 #include <QDebug>
+#include <QElapsedTimer>
 #include <QList>
 #include <QTime>
 
@@ -255,16 +256,16 @@ void FormEditorScene::mousePressEvent(QGraphicsSceneMouseEvent *event)
         currentTool()->mousePressEvent(removeLayerItems(itemsAt(event->scenePos())), event);
 }
 
-static QTime staticTimer()
+static QElapsedTimer staticTimer()
 {
-    QTime timer;
+    QElapsedTimer timer;
     timer.start();
     return timer;
 }
 
 void FormEditorScene::mouseMoveEvent(QGraphicsSceneMouseEvent *event)
 {
-    static QTime time = staticTimer();
+    static QElapsedTimer time = staticTimer();
 
     QGraphicsScene::mouseMoveEvent(event);
 
diff --git a/src/plugins/qmldesigner/components/formeditor/selectiontool.h b/src/plugins/qmldesigner/components/formeditor/selectiontool.h
index 6bfcf72f6b3..72bad79f4f6 100644
--- a/src/plugins/qmldesigner/components/formeditor/selectiontool.h
+++ b/src/plugins/qmldesigner/components/formeditor/selectiontool.h
@@ -33,6 +33,7 @@
 #include "bindingindicator.h"
 #include "contentnoteditableindicator.h"
 
+#include <QElapsedTimer>
 #include <QTime>
 
 namespace QmlDesigner {
@@ -87,7 +88,7 @@ private:
     AnchorIndicator m_anchorIndicator;
     BindingIndicator m_bindingIndicator;
     ContentNotEditableIndicator m_contentNotEditableIndicator;
-    QTime m_mousePressTimer;
+    QElapsedTimer m_mousePressTimer;
     QCursor m_cursor;
     bool m_itemAlreadySelected = false;
 };
diff --git a/src/plugins/qmldesigner/components/propertyeditor/propertyeditorqmlbackend.cpp b/src/plugins/qmldesigner/components/propertyeditor/propertyeditorqmlbackend.cpp
index ae47586641c..c0b96a7baea 100644
--- a/src/plugins/qmldesigner/components/propertyeditor/propertyeditorqmlbackend.cpp
+++ b/src/plugins/qmldesigner/components/propertyeditor/propertyeditorqmlbackend.cpp
@@ -273,7 +273,7 @@ void PropertyEditorQmlBackend::setup(const QmlObjectNode &qmlObjectNode, const Q
 
         qCInfo(propertyEditorBenchmark) << Q_FUNC_INFO;
 
-        QTime time;
+        QElapsedTimer time;
         if (propertyEditorBenchmark().isInfoEnabled())
             time.start();
 
diff --git a/src/plugins/qmldesigner/designercore/include/nodeinstanceview.h b/src/plugins/qmldesigner/designercore/include/nodeinstanceview.h
index c0e0b415373..f77ac4645b0 100644
--- a/src/plugins/qmldesigner/designercore/include/nodeinstanceview.h
+++ b/src/plugins/qmldesigner/designercore/include/nodeinstanceview.h
@@ -33,6 +33,7 @@
 #include <nodeinstanceclientinterface.h>
 #include <nodeinstanceserverinterface.h>
 
+#include <QElapsedTimer>
 #include <QHash>
 #include <QImage>
 #include <QPointer>
@@ -195,7 +196,7 @@ private: //variables
 
     QPointer<NodeInstanceServerInterface> m_nodeInstanceServer;
     QImage m_baseStatePreviewImage;
-    QTime m_lastCrashTime;
+    QElapsedTimer m_lastCrashTime;
     NodeInstanceServerInterface::RunModus m_runModus;
     ProjectExplorer::Kit *m_currentKit = nullptr;
     ProjectExplorer::Project *m_currentProject = nullptr;
diff --git a/src/plugins/qmldesigner/designercore/model/model.cpp b/src/plugins/qmldesigner/designercore/model/model.cpp
index d53b8cfc1d5..981524b3095 100644
--- a/src/plugins/qmldesigner/designercore/model/model.cpp
+++ b/src/plugins/qmldesigner/designercore/model/model.cpp
@@ -1396,7 +1396,7 @@ void ModelPrivate::setSelectedNodes(const QList<InternalNode::Pointer> &selected
     QList<InternalNode::Pointer> sortedSelectedList
             = Utils::filtered(selectedNodeList, &InternalNode::isValid);
 
-    sortedSelectedList = sortedSelectedList.toSet().toList();
+    sortedSelectedList = Utils::toList(Utils::toSet(sortedSelectedList));
     Utils::sort(sortedSelectedList);
 
     if (sortedSelectedList == m_selectedInternalNodeList)
@@ -1767,7 +1767,8 @@ QList<InternalNodePointer> ModelPrivate::allNodes() const
 
     nodeList.append(m_rootInternalNode);
     nodeList.append(m_rootInternalNode->allSubNodes());
-    nodeList.append((m_nodeSet - nodeList.toSet()).toList());
+    // FIXME: This is horribly expensive compared to a loop.
+    nodeList.append(Utils::toList(m_nodeSet - Utils::toSet(nodeList)));
 
     return nodeList;
 }
diff --git a/src/plugins/qmldesigner/designercore/model/viewmanager.cpp b/src/plugins/qmldesigner/designercore/model/viewmanager.cpp
index c2f36fad905..989ea8dbb40 100644
--- a/src/plugins/qmldesigner/designercore/model/viewmanager.cpp
+++ b/src/plugins/qmldesigner/designercore/model/viewmanager.cpp
@@ -47,6 +47,7 @@
 
 #include <utils/algorithm.h>
 
+#include <QElapsedTimer>
 #include <QLoggingCategory>
 #include <QTabWidget>
 
@@ -102,8 +103,7 @@ DesignDocument *ViewManager::currentDesignDocument() const
 
 void ViewManager::attachNodeInstanceView()
 {
-
-    QTime time;
+    QElapsedTimer time;
     if (viewBenchmark().isInfoEnabled())
         time.start();
 
@@ -117,7 +117,7 @@ void ViewManager::attachNodeInstanceView()
 
 void ViewManager::attachRewriterView()
 {
-    QTime time;
+    QElapsedTimer time;
     if (viewBenchmark().isInfoEnabled())
         time.start();
 
@@ -253,7 +253,7 @@ void ViewManager::attachViewsExceptRewriterAndComponetView()
 
     attachNodeInstanceView();
 
-    QTime time;
+    QElapsedTimer time;
     if (viewBenchmark().isInfoEnabled())
         time.start();