diff --git a/CHANGELOG b/CHANGELOG
index 4d9c8e8..a7f14e1 100644
--- a/CHANGELOG
+++ b/CHANGELOG
@@ -1,6 +1,9 @@
-ver.2.3.4:
+Ver.2.3.4:
++ add support of load average (la1, la5, la15 tags)
 - fix bug with invalid network data calculation
-* update pattern parsing to recent plasma changes
+* improve work with data updating (#57)
+* move plugin part back to private
+* cast plugin as type, not signleton (#57)
 
 Ver.2.3.3:
 * change text rendering from Qt to native
diff --git a/CHANGELOG-RU b/CHANGELOG-RU
index 281108e..c5dd528 100644
--- a/CHANGELOG-RU
+++ b/CHANGELOG-RU
@@ -1,3 +1,10 @@
+Вер.2.3.4:
++ добавлена поддержа LA (теги la1, la5, la15)
+- исправлен баг с неправильным расчетам скорости сети
+* улучшена работа с обновлениями виджета (#57)
+* плагин опять стал приватным
+* исправлен каст плагина с синглтона (#57)
+
 Вер.2.3.3:
 * изменен рендеринг с Qt на нативный
 
diff --git a/arch/PKGBUILD b/arch/PKGBUILD
index aaf4819..edd9f77 100644
--- a/arch/PKGBUILD
+++ b/arch/PKGBUILD
@@ -2,7 +2,7 @@
 
 pkgname=plasma5-applet-awesome-widgets
 _pkgname=awesome-widgets
-pkgver=2.3.3
+pkgver=2.3.4
 pkgrel=1
 pkgdesc="Collection of minimalistic Plasmoids which look like Awesome WM widgets (ex-PyTextMonitor)"
 arch=('i686' 'x86_64')
@@ -17,7 +17,7 @@ optdepends=("catalyst: for GPU monitor"
 makedepends=('cmake' 'extra-cmake-modules')
 source=(https://github.com/arcan1s/awesome-widgets/releases/download/V.${pkgver}/${_pkgname}-${pkgver}-src.tar.xz)
 install=${pkgname}.install
-md5sums=('a40592d66d9b5149fc7d470dc3e355cb')
+md5sums=('74e5b45df042e81c20f5e8bf421451f8')
 backup=('etc/xdg/plasma-dataengine-extsysmon.conf')
 
 prepare() {
diff --git a/sources/awesome-widget/package/contents/ui/main.qml b/sources/awesome-widget/package/contents/ui/main.qml
index 839c363..650770b 100644
--- a/sources/awesome-widget/package/contents/ui/main.qml
+++ b/sources/awesome-widget/package/contents/ui/main.qml
@@ -66,7 +66,8 @@ Item {
     }
 
     signal dropSource(string sourceName)
-    signal needUpdate
+    signal needTextUpdate(string newText)
+    signal needToolTipUpdate(string newText)
     signal sizeUpdate
 
 
@@ -91,7 +92,7 @@ Item {
         onNewData: {
             if (debug) console.log("[main::onNewData] : Update source " + sourceName)
             // FIXME: ugly workaround to make some sources working
-            systemmonitorDE.interval = plasmoid.configuration.interval
+//             systemmonitorDE.interval = plasmoid.configuration.interval
 
             awKeys.setDataBySource(sourceName, data, settings)
         }
@@ -112,7 +113,7 @@ Item {
         onNewData: {
             if (debug) console.log("[main::onNewData] : Update source " + sourceName)
             // FIXME: ugly workaround to make some sources working
-            extsysmonDE.interval = plasmoid.configuration.interval
+//             extsysmonDE.interval = plasmoid.configuration.interval
 
             awKeys.setDataBySource(sourceName, data, settings)
         }
@@ -175,7 +176,8 @@ Item {
         Plasmoid.userConfiguringChanged(false)
         // connect data
         awKeys.dropSourceFromDataengine.connect(dropSource)
-        awKeys.needToBeUpdated.connect(needUpdate)
+        awKeys.needTextToBeUpdated.connect(needTextUpdate)
+        awKeys.needToolTipToBeUpdated.connect(needToolTipUpdate)
     }
 
     onDropSource: {
@@ -185,15 +187,19 @@ Item {
         systemmonitorDE.disconnectSource(sourceName)
     }
 
-    onNeedUpdate: {
-        if (debug) console.log("[main::onNeedUpdate]")
-
-        text.text = awKeys.parsePattern()
-        tooltip.text = awKeys.toolTipImage()
+    onNeedTextUpdate: {
+        if (debug) console.log("[main::onNeedTextUpdate]")
 
+        text.text = newText
         sizeUpdate()
     }
 
+    onNeedToolTipUpdate: {
+        if (debug) console.log("[main::onNeedToolTipUpdate]")
+
+        tooltip.text = newText
+    }
+
     onSizeUpdate: {
         if (debug) console.log("[main::onSizeUpdate]")
 
@@ -223,7 +229,7 @@ Item {
         awKeys.setPopupEnabled(plasmoid.configuration.notify)
         awKeys.setWrapNewLines(plasmoid.configuration.wrapNewLines)
 
-        needUpdate()
+        needTextUpdate(plasmoid.configuration.text)
     }
 
     function action_checkUpdates() {
diff --git a/sources/awesome-widget/plugin/awactions.cpp b/sources/awesome-widget/plugin/awactions.cpp
index 3889935..9a95eaa 100644
--- a/sources/awesome-widget/plugin/awactions.cpp
+++ b/sources/awesome-widget/plugin/awactions.cpp
@@ -215,7 +215,8 @@ void AWActions::showUpdates(QString version)
     text += i18n("New version : %1", version) + QString("\n\n");
     text += i18n("Click \"Ok\" to download");
 
-    int select = QMessageBox::information(0, i18n("There are updates"), text, QMessageBox::Ok | QMessageBox::Cancel);
+    int select = QMessageBox::information(nullptr, i18n("There are updates"), text,
+                                          QMessageBox::Ok | QMessageBox::Cancel);
     switch (select) {
     case QMessageBox::Ok:
         QDesktopServices::openUrl(QString(RELEASES) + version);
diff --git a/sources/awesome-widget/plugin/awkeys.cpp b/sources/awesome-widget/plugin/awkeys.cpp
index b733d54..f283cb5 100644
--- a/sources/awesome-widget/plugin/awkeys.cpp
+++ b/sources/awesome-widget/plugin/awkeys.cpp
@@ -51,6 +51,9 @@ AWKeys::AWKeys(QObject *parent)
     QString debugEnv = environment.value(QString("DEBUG"), QString("no"));
     debug = (debugEnv == QString("yes"));
 
+    // backend
+    connect(this, SIGNAL(needToBeUpdated()), this, SLOT(dataUpdate()));
+
     // init dialog
     dialog = new QDialog(nullptr);
     widgetDialog = new QListWidget(dialog);
@@ -73,11 +76,6 @@ AWKeys::~AWKeys()
     if (debug) qDebug() << PDEBUG;
 
     delete toolTip;
-    delete createButton;
-    delete copyButton;
-    delete deleteButton;
-    delete dialogButtons;
-    delete widgetDialog;
     delete dialog;
 
     graphicalItems.clear();
@@ -165,22 +163,6 @@ QString AWKeys::parsePattern()
 }
 
 
-QString AWKeys::toolTipImage()
-{
-    if(debug) qDebug() << PDEBUG;
-    if (toolTip == nullptr) return QString("");
-
-    if (keys.isEmpty()) return QString();
-
-    QPixmap tooltip = toolTip->image();
-    QByteArray byteArray;
-    QBuffer buffer(&byteArray);
-    tooltip.save(&buffer, "PNG");
-
-    return QString("<img src=\"data:image/png;base64,%1\"/>").arg(QString(byteArray.toBase64()));
-}
-
-
 QSize AWKeys::toolTipSize()
 {
     if (debug) qDebug() << PDEBUG;
@@ -327,6 +309,10 @@ QStringList AWKeys::dictKeys(const bool sorted)
     allKeys.append(QString("desktop"));
     allKeys.append(QString("ndesktop"));
     allKeys.append(QString("tdesktops"));
+    // load average
+    allKeys.append(QString("la15"));
+    allKeys.append(QString("la5"));
+    allKeys.append(QString("la1"));
     // bars
     QStringList graphicalItemsKeys;
     for (int i=0; i<graphicalItems.count(); i++)
@@ -362,13 +348,10 @@ void AWKeys::setDataBySource(const QString sourceName, const QVariantMap data,
     if (debug) qDebug() << PDEBUG;
     if (debug) qDebug() << PDEBUG << ":" << "Source" << sourceName;
 
-    if (sourceName == QString("update")) {
-        emit(needToBeUpdated());
-        return;
-    }
+    if (sourceName == QString("update")) return emit(needToBeUpdated());
 
     // checking
-    if (!checkKeys(data)) return;
+//     if (!checkKeys(data)) return;
     if (keys.isEmpty()) return;
 
     // regular expressions
@@ -517,6 +500,11 @@ void AWKeys::setDataBySource(const QString sourceName, const QVariantMap data,
                         temperature(data[data.keys()[i]].toFloat(), params[QString("tempUnits")].toString()), 4, 'f', 1);
                     break;
                 }
+    } else if (sourceName.startsWith(QString("cpu/system/loadavg"))) {
+        // load average
+        QString time = sourceName;
+        time.remove(QString("cpu/system/loadavg"));
+        values[QString("la%1").arg(time)] = QString("%1").arg(data[QString("value")].toFloat(), 5, 'f', 2);
     } else if (sourceName == QString("mem/physical/application")) {
         // app memory
         values[QString("memmb")] = QString("%1").arg(data[QString("value")].toFloat() / 1024.0, 5, 'f', 0);
@@ -639,8 +627,8 @@ void AWKeys::setDataBySource(const QString sourceName, const QVariantMap data,
         for (int i=0; i<tempDevices.count(); i++)
             if (sourceName == tempDevices[i]) {
                 float temp = data[QString("units")].toString() == QString("°C") ?
-                    temperature(data[QString("value")].toFloat(), params[QString("tempUnits")].toString())
-                    : data[QString("value")].toFloat();
+                    temperature(data[QString("value")].toFloat(), params[QString("tempUnits")].toString()) :
+                    data[QString("value")].toFloat();
                 values[QString("temp%1").arg(i)] = QString("%1").arg(temp, 4, 'f', 1);
                 break;
             }
@@ -797,6 +785,15 @@ void AWKeys::editItem(const QString type)
 }
 
 
+void AWKeys::dataUpdate()
+{
+    if (debug) qDebug() << PDEBUG;
+
+    emit(needTextToBeUpdated(parsePattern()));
+    emit(needToolTipToBeUpdated(toolTipImage()));
+}
+
+
 void AWKeys::loadKeysFromCache()
 {
     if (debug) qDebug() << PDEBUG;
@@ -1325,6 +1322,22 @@ float AWKeys::temperature(const float temp, const QString units)
 }
 
 
+QString AWKeys::toolTipImage()
+{
+    if(debug) qDebug() << PDEBUG;
+    if (toolTip == nullptr) return QString("");
+
+    if (keys.isEmpty()) return QString();
+
+    QPixmap tooltip = toolTip->image();
+    QByteArray byteArray;
+    QBuffer buffer(&byteArray);
+    tooltip.save(&buffer, "PNG");
+
+    return QString("<img src=\"data:image/png;base64,%1\"/>").arg(QString(byteArray.toBase64()));
+}
+
+
 QStringList AWKeys::findGraphicalItems()
 {
     if (debug) qDebug() << PDEBUG;
diff --git a/sources/awesome-widget/plugin/awkeys.h b/sources/awesome-widget/plugin/awkeys.h
index be1ad76..ffc895c 100644
--- a/sources/awesome-widget/plugin/awkeys.h
+++ b/sources/awesome-widget/plugin/awkeys.h
@@ -57,7 +57,6 @@ public:
     Q_INVOKABLE void setWrapNewLines(const bool wrap = false);
     Q_INVOKABLE bool isDebugEnabled();
     Q_INVOKABLE QString parsePattern();
-    Q_INVOKABLE QString toolTipImage();
     Q_INVOKABLE QSize toolTipSize();
     // keys
     Q_INVOKABLE void addDevice(const QString source);
@@ -74,9 +73,12 @@ public:
 
 signals:
     void dropSourceFromDataengine(const QString source);
+    void needTextToBeUpdated(const QString newText);
+    void needToolTipToBeUpdated(const QString newText);
     void needToBeUpdated();
 
 private slots:
+    void dataUpdate();
     void loadKeysFromCache();
     void reinitKeys();
     // editor
@@ -93,10 +95,10 @@ private:
     QString htmlValue(QString key);
     int numberCpus();
     float temperature(const float temp, const QString units);
+    QString toolTipImage();
     // find methods
     QStringList findGraphicalItems();
     QStringList findKeys();
-     // get methods
     // get methods
     QList<ExtQuotes *> getExtQuotes();
     QList<ExtScript *> getExtScripts();
diff --git a/sources/awesome-widget/plugin/awtooltip.cpp b/sources/awesome-widget/plugin/awtooltip.cpp
index 568c139..d0e5dd8 100644
--- a/sources/awesome-widget/plugin/awtooltip.cpp
+++ b/sources/awesome-widget/plugin/awtooltip.cpp
@@ -33,7 +33,7 @@ AWToolTip::AWToolTip(QObject *parent, QVariantMap settings)
     QString debugEnv = environment.value(QString("DEBUG"), QString("no"));
     debug = (debugEnv == QString("yes"));
 
-    toolTipScene = new QGraphicsScene();
+    toolTipScene = new QGraphicsScene(nullptr);
     toolTipView = new QGraphicsView(toolTipScene);
     toolTipView->setStyleSheet(QString("background: transparent"));
     toolTipView->setContentsMargins(0, 0, 0, 0);
@@ -72,7 +72,6 @@ AWToolTip::~AWToolTip()
 {
     if (debug) qDebug() << PDEBUG;
 
-    delete toolTipView;
     delete toolTipScene;
 }
 
@@ -94,10 +93,9 @@ QPixmap AWToolTip::image()
     toolTipScene->clear();
     QPen pen = QPen();
     // background
-    if (configuration[QString("useTooltipBackground")].toBool())
-        toolTipScene->setBackgroundBrush(QBrush(QColor(configuration[QString("tooltipBackground")].toString())));
-    else
-        toolTipScene->setBackgroundBrush(QBrush(Qt::NoBrush));
+    toolTipScene->setBackgroundBrush(configuration[QString("useTooltipBackground")].toBool() ?
+                                     QBrush(QColor(configuration[QString("tooltipBackground")].toString())) :
+                                     QBrush(Qt::NoBrush));
     bool down = false;
     for (int i=0; i<requiredKeys.count(); i++) {
         float normX = 100.0 / static_cast<float>(data[requiredKeys[i]].count());
diff --git a/sources/awesome-widget/plugin/graphicalitem.h b/sources/awesome-widget/plugin/graphicalitem.h
index 5168f53..50f522b 100644
--- a/sources/awesome-widget/plugin/graphicalitem.h
+++ b/sources/awesome-widget/plugin/graphicalitem.h
@@ -52,7 +52,8 @@ public:
     };
 
     explicit GraphicalItem(QWidget *parent = nullptr, const QString desktopName = QString(),
-                           const QStringList directories = QStringList(), const bool debugCmd = false);
+                           const QStringList directories = QStringList(),
+                           const bool debugCmd = false);
     ~GraphicalItem();
     QString fileName();
     QString image(const float value);
diff --git a/sources/extsysmon/extquotes.cpp b/sources/extsysmon/extquotes.cpp
index 637851d..3b5e941 100644
--- a/sources/extsysmon/extquotes.cpp
+++ b/sources/extsysmon/extquotes.cpp
@@ -151,12 +151,12 @@ void ExtQuotes::setApiVersion(const int _apiVersion)
 }
 
 
-void ExtQuotes::setActive(const bool state)
+void ExtQuotes::setActive(const bool _state)
 {
     if (debug) qDebug() << PDEBUG;
-    if (debug) qDebug() << PDEBUG << ":" << "State" << state;
+    if (debug) qDebug() << PDEBUG << ":" << "State" << _state;
 
-    m_active = state;
+    m_active = _state;
 }
 
 
diff --git a/sources/extsysmon/extscript.cpp b/sources/extsysmon/extscript.cpp
index 69577eb..1f35bbb 100644
--- a/sources/extsysmon/extscript.cpp
+++ b/sources/extsysmon/extscript.cpp
@@ -196,12 +196,12 @@ void ExtScript::setApiVersion(const int _apiVersion)
 }
 
 
-void ExtScript::setActive(const bool state)
+void ExtScript::setActive(const bool _state)
 {
     if (debug) qDebug() << PDEBUG;
-    if (debug) qDebug() << PDEBUG << ":" << "State" << state;
+    if (debug) qDebug() << PDEBUG << ":" << "State" << _state;
 
-    m_active = state;
+    m_active = _state;
 }
 
 
@@ -519,7 +519,7 @@ void ExtScript::updateValue()
         if (debug) qDebug() << PDEBUG << ":" << "Output" << qoutput;
         break;
     case stderr2stdout:
-        value = QString("%1\t%2").arg(qdebug).arg(qoutput);
+        value = QString("%1\n%2").arg(qdebug).arg(qoutput);
         break;
     case nothing:
     default:
diff --git a/sources/extsysmon/extsysmon.cpp b/sources/extsysmon/extsysmon.cpp
index c92957f..890d5ca 100644
--- a/sources/extsysmon/extsysmon.cpp
+++ b/sources/extsysmon/extsysmon.cpp
@@ -333,14 +333,14 @@ QVariantMap ExtendedSysMon::getBattery(const QString acpiPath)
             (fullLevelFile.open(QIODevice::ReadOnly))) {
             float batCurrent = QString(currentLevelFile.readLine()).trimmed().toFloat();
             float batFull = QString(fullLevelFile.readLine()).trimmed().toFloat();
-            battery[QString("bat%1").arg(i)] = 100 * batCurrent / batFull;
+            battery[QString("bat%1").arg(i)] = static_cast<int>(100 * batCurrent / batFull);
             currentLevel += batCurrent;
             fullLevel += batFull;
         }
         currentLevelFile.close();
         fullLevelFile.close();
     }
-    battery[QString("bat")] = 100 * currentLevel / fullLevel;
+    battery[QString("bat")] = static_cast<int>(100 * currentLevel / fullLevel);
 
     return battery;
 }
diff --git a/sources/extsysmon/extupgrade.cpp b/sources/extsysmon/extupgrade.cpp
index 5b0c742..0d9900c 100644
--- a/sources/extsysmon/extupgrade.cpp
+++ b/sources/extsysmon/extupgrade.cpp
@@ -146,12 +146,12 @@ void ExtUpgrade::setApiVersion(const int _apiVersion)
 }
 
 
-void ExtUpgrade::setActive(const bool state)
+void ExtUpgrade::setActive(const bool _state)
 {
     if (debug) qDebug() << PDEBUG;
-    if (debug) qDebug() << PDEBUG << ":" << "State" << state;
+    if (debug) qDebug() << PDEBUG << ":" << "State" << _state;
 
-    m_active = state;
+    m_active = _state;
 }
 
 
@@ -251,7 +251,7 @@ int ExtUpgrade::run()
     if (!m_active) return value;
 
     if ((times == 1) && (process->state() == QProcess::NotRunning))
-        process->start(QString("bash -c \"%1\"").arg(m_executable));
+        process->start(QString("sh -c \"%1\"").arg(m_executable));
     else if (times >= m_interval)
         times = 0;
     times++;