diff --git a/include/api/JsonAPI.h b/include/api/JsonAPI.h
index 60b092f5..37349631 100644
--- a/include/api/JsonAPI.h
+++ b/include/api/JsonAPI.h
@@ -50,6 +50,8 @@ public:
 	///
 	void initialize();
 
+	QSharedPointer<JsonCallbacks> JsonAPI::getCallBack() const;
+
 public slots:
 
 private slots:
@@ -82,7 +84,7 @@ signals:
 	///
 	/// Signal emits with the reply message provided with handleMessage()
 	///
-	void callbackMessage(QJsonObject);
+	void callbackReady(QJsonObject);
 
 	///
 	/// Signal emits whenever a JSON-message should be forwarded
diff --git a/include/api/JsonCallbacks.h b/include/api/JsonCallbacks.h
index a5c14ce4..14b30479 100644
--- a/include/api/JsonCallbacks.h
+++ b/include/api/JsonCallbacks.h
@@ -93,7 +93,7 @@ signals:
 	/// @brief Emits whenever a new json mesage callback is ready to send
 	/// @param The JsonObject message
 	///
-	void newCallback(QJsonObject);
+	void callbackReady(QJsonObject);
 
 private slots:
 	///
@@ -182,6 +182,8 @@ private:
 
 	/// construct callback msg
 	void doCallback(Subscription::Type cmd, const QVariant& data);
+	void doCallback(Subscription::Type cmd, const QJsonArray& data);
+	void doCallback(Subscription::Type cmd, const QJsonObject& data);
 
 	Logger *_log;
 	Hyperion* _hyperion;
diff --git a/libsrc/api/JsonAPI.cpp b/libsrc/api/JsonAPI.cpp
index 52e4c6af..ac5fcdc1 100644
--- a/libsrc/api/JsonAPI.cpp
+++ b/libsrc/api/JsonAPI.cpp
@@ -85,6 +85,11 @@ JsonAPI::JsonAPI(QString peerAddress, Logger *log, bool localConnection, QObject
 	_jsonCB = QSharedPointer<JsonCallbacks>(new JsonCallbacks( _log, _peerAddress, parent));
 }
 
+QSharedPointer<JsonCallbacks> JsonAPI::getCallBack() const
+{
+	return _jsonCB;
+}
+
 void JsonAPI::initialize()
 {
 	// init API, REQUIRED!
@@ -97,9 +102,6 @@ void JsonAPI::initialize()
 	// listen for killed instances
 	connect(_instanceManager, &HyperionIManager::instanceStateChanged, this, &JsonAPI::handleInstanceStateChange);
 
-	// pipe callbacks from subscriptions to parent
-	connect(_jsonCB.data(), &JsonCallbacks::newCallback, this, &JsonAPI::callbackMessage);
-
 	// notify hyperion about a jsonMessageForward
 	if (_hyperion != nullptr)
 	{
@@ -1537,7 +1539,7 @@ void JsonAPI::sendSuccessReply(const JsonApiCommand& cmd)
 
 void JsonAPI::sendSuccessReply(const QString &command, int tan, InstanceCmd::Type isInstanceCmd)
 {
-	emit callbackMessage(getBasicCommandReply(true, command, tan , isInstanceCmd));
+	emit callbackReady(getBasicCommandReply(true, command, tan , isInstanceCmd));
 }
 
 void JsonAPI::sendSuccessDataReply(const QJsonValue &infoData, const JsonApiCommand& cmd)
@@ -1572,7 +1574,7 @@ void JsonAPI::sendSuccessDataReplyWithError(const QJsonValue &infoData, const QS
 		reply["errorData"] = errorsArray;
 	}
 
-	emit callbackMessage(reply);
+	emit callbackReady(reply);
 }
 
 void JsonAPI::sendErrorReply(const QString &error, const JsonApiCommand& cmd)
@@ -1601,7 +1603,7 @@ void JsonAPI::sendErrorReply(const QString &error, const QStringList& errorDetai
 		reply["errorData"] = errorsArray;
 	}
 
-	emit callbackMessage(reply);
+	emit callbackReady(reply);
 }
 
 void JsonAPI::sendNewRequest(const QJsonValue &infoData, const JsonApiCommand& cmd)
@@ -1621,7 +1623,7 @@ void JsonAPI::sendNewRequest(const QJsonValue &infoData, const QString &command,
 
 	request["info"] = infoData;
 
-	emit callbackMessage(request);
+	emit callbackReady(request);
 }
 
 void JsonAPI::sendNoAuthorization(const JsonApiCommand& cmd)
diff --git a/libsrc/api/JsonCallbacks.cpp b/libsrc/api/JsonCallbacks.cpp
index 0e156727..44369cac 100644
--- a/libsrc/api/JsonCallbacks.cpp
+++ b/libsrc/api/JsonCallbacks.cpp
@@ -282,22 +282,43 @@ QStringList JsonCallbacks::getSubscribedCommands() const
 }
 
 void JsonCallbacks::doCallback(Subscription::Type cmd, const QVariant& data)
+{
+	if (data.userType() == QMetaType::QJsonArray)
+	{
+		doCallback(cmd, data.toJsonArray());
+	}
+	else
+	{
+		doCallback(cmd, data.toJsonObject());
+	}
+}
+
+void JsonCallbacks::doCallback(Subscription::Type cmd, const QJsonArray& data)
 {
 	QJsonObject obj;
 	obj["command"] = Subscription::toString(cmd);
 
 	if (Subscription::isInstanceSpecific(cmd))
 	{
-		obj["instance"] = _hyperion->getInstanceIndex();
+		obj.insert("instance", _hyperion->getInstanceIndex());
 	}
+	obj.insert("data", data);
 
-	if (data.userType() == QMetaType::QJsonArray) {
-		obj["data"] = data.toJsonArray();
-	} else {
-		obj["data"] = data.toJsonObject();
+	emit callbackReady(obj);
+}
+
+void JsonCallbacks::doCallback(Subscription::Type cmd, const QJsonObject& data)
+{
+	QJsonObject obj;
+	obj["command"] = Subscription::toString(cmd);
+
+	if (Subscription::isInstanceSpecific(cmd))
+	{
+		obj.insert("instance", _hyperion->getInstanceIndex());
 	}
+	obj.insert("data", data);
 
-	emit newCallback(obj);
+	emit callbackReady(obj);
 }
 
 void JsonCallbacks::handleComponentState(hyperion::Components comp, bool state)
@@ -306,7 +327,7 @@ void JsonCallbacks::handleComponentState(hyperion::Components comp, bool state)
 	data["name"] = componentToIdString(comp);
 	data["enabled"] = state;
 
-	doCallback(Subscription::ComponentsUpdate, QVariant(data));
+	doCallback(Subscription::ComponentsUpdate, data);
 }
 
 void JsonCallbacks::handlePriorityUpdate(int currentPriority, const PriorityMuxer::InputsMap& activeInputs)
@@ -315,7 +336,7 @@ void JsonCallbacks::handlePriorityUpdate(int currentPriority, const PriorityMuxe
 	data["priorities"] = JsonInfo::getPrioritiestInfo(currentPriority, activeInputs);
 	data["priorities_autoselect"] = _hyperion->sourceAutoSelectEnabled();
 
-	doCallback(Subscription::PrioritiesUpdate, QVariant(data));
+	doCallback(Subscription::PrioritiesUpdate, data);
 }
 
 void JsonCallbacks::handleImageToLedsMappingChange(int mappingType)
@@ -323,7 +344,7 @@ void JsonCallbacks::handleImageToLedsMappingChange(int mappingType)
 	QJsonObject data;
 	data["imageToLedMappingType"] = ImageProcessor::mappingTypeToStr(mappingType);
 
-	doCallback(Subscription::ImageToLedMappingUpdate, QVariant(data));
+	doCallback(Subscription::ImageToLedMappingUpdate, data);
 }
 
 void JsonCallbacks::handleAdjustmentChange()
@@ -335,7 +356,7 @@ void JsonCallbacks::handleVideoModeChange(VideoMode mode)
 {
 	QJsonObject data;
 	data["videomode"] = QString(videoMode2String(mode));
-	doCallback(Subscription::VideomodeUpdate, QVariant(data));
+	doCallback(Subscription::VideomodeUpdate, data);
 }
 
 #if defined(ENABLE_EFFECTENGINE)
@@ -343,29 +364,29 @@ void JsonCallbacks::handleEffectListChange()
 {
 	QJsonObject effects;
 	effects["effects"] = JsonInfo::getEffects(_hyperion);
-	doCallback(Subscription::EffectsUpdate, QVariant(effects));
+	doCallback(Subscription::EffectsUpdate, effects);
 }
 #endif
 
 void JsonCallbacks::handleSettingsChange(settings::type type, const QJsonDocument& data)
 {
-	QJsonObject dat;
+	QJsonObject obj;
 	if(data.isObject()) {
-		dat[typeToString(type)] = data.object();
+		obj[typeToString(type)] = data.object();
 	} else {
-		dat[typeToString(type)] = data.array();
+		obj[typeToString(type)] = data.array();
 	}
 
-	doCallback(Subscription::SettingsUpdate, QVariant(dat));
+	doCallback(Subscription::SettingsUpdate, obj);
 }
 
 void JsonCallbacks::handleLedsConfigChange(settings::type type, const QJsonDocument& data)
 {
 	if(type == settings::LEDS)
 	{
-		QJsonObject dat;
-		dat[typeToString(type)] = data.array();
-		doCallback(Subscription::LedsUpdate, QVariant(dat));
+		QJsonObject obj;
+		obj[typeToString(type)] = data.array();
+		doCallback(Subscription::LedsUpdate, obj);
 	}
 }
 
@@ -385,7 +406,7 @@ void JsonCallbacks::handleTokenChange(const QVector<AuthManager::AuthDefinition>
 		sub["last_use"] = entry.lastUse;
 		arr.push_back(sub);
 	}
-	doCallback(Subscription::TokenUpdate, QVariant(arr));
+	doCallback(Subscription::TokenUpdate, arr);
 }
 
 void JsonCallbacks::handleLedColorUpdate(const std::vector<ColorRgb> &ledColors)
@@ -393,13 +414,16 @@ void JsonCallbacks::handleLedColorUpdate(const std::vector<ColorRgb> &ledColors)
 	QJsonObject result;
 	QJsonArray leds;
 
-	for (const auto &color : ledColors)
+	// Avoid copying by appending RGB values directly
+	for (const auto& color : ledColors)
 	{
-		leds << QJsonValue(color.red) << QJsonValue(color.green) << QJsonValue(color.blue);
+		leds.append(QJsonValue(color.red));
+		leds.append(QJsonValue(color.green));
+		leds.append(QJsonValue(color.blue));
 	}
 	result["leds"] = leds;
 
-	doCallback(Subscription::LedColorsUpdate, QVariant(result));
+	doCallback(Subscription::LedColorsUpdate, result);
 }
 
 void JsonCallbacks::handleImageUpdate(const Image<ColorRgb> &image)
@@ -413,7 +437,7 @@ void JsonCallbacks::handleImageUpdate(const Image<ColorRgb> &image)
 	QJsonObject result;
 	result["image"] = "data:image/jpg;base64," + QString(byteArray.toBase64());
 
-	doCallback(Subscription::ImageUpdate, QVariant(result));
+	doCallback(Subscription::ImageUpdate, result);
 }
 
 void JsonCallbacks::handleLogMessageUpdate(const Logger::T_LOG_MESSAGE &msg)
@@ -445,7 +469,7 @@ void JsonCallbacks::handleLogMessageUpdate(const Logger::T_LOG_MESSAGE &msg)
 	}
 	result.insert("messages", messageArray);
 
-	doCallback(Subscription::LogMsgUpdate, QVariant(result));
+	doCallback(Subscription::LogMsgUpdate, result);
 }
 
 void JsonCallbacks::handleEventUpdate(const Event &event)
@@ -454,6 +478,6 @@ void JsonCallbacks::handleEventUpdate(const Event &event)
 
 	result["event"] = eventToString(event);
 
-	doCallback(Subscription::EventUpdate, QVariant(result));
+	doCallback(Subscription::EventUpdate, result);
 }
 
diff --git a/libsrc/jsonserver/JsonClientConnection.cpp b/libsrc/jsonserver/JsonClientConnection.cpp
index 8af1346a..cdd2fe8a 100644
--- a/libsrc/jsonserver/JsonClientConnection.cpp
+++ b/libsrc/jsonserver/JsonClientConnection.cpp
@@ -1,6 +1,7 @@
 // project includes
 #include "JsonClientConnection.h"
 #include <api/JsonAPI.h>
+#include <api/JsonCallbacks.h>
 
 // qt inc
 #include <QTcpSocket>
@@ -17,8 +18,9 @@ JsonClientConnection::JsonClientConnection(QTcpSocket *socket, bool localConnect
 	// create a new instance of JsonAPI
 	_jsonAPI = new JsonAPI(socket->peerAddress().toString(), _log, localConnection, this);
 	// get the callback messages from JsonAPI and send it to the client
-	connect(_jsonAPI, &JsonAPI::callbackMessage, this , &JsonClientConnection::sendMessage);
+	connect(_jsonAPI, &JsonAPI::callbackReady, this , &JsonClientConnection::sendMessage);
 	connect(_jsonAPI, &JsonAPI::forceClose, this , [&](){ _socket->close(); } );
+	connect(_jsonAPI->getCallBack().get(), &JsonCallbacks::callbackReady, this, &JsonClientConnection::sendMessage);
 
 	_jsonAPI->initialize();
 }
@@ -47,7 +49,8 @@ void JsonClientConnection::readRequest()
 qint64 JsonClientConnection::sendMessage(QJsonObject message)
 {
 	QJsonDocument writer(message);
-	QByteArray data = writer.toJson(QJsonDocument::Compact) + "\n";
+	QByteArray data = writer.toJson(QJsonDocument::Compact);
+	data.append('\n');
 
 	if (!_socket || (_socket->state() != QAbstractSocket::ConnectedState)) return 0;
 	return _socket->write(data.data(), data.size());
diff --git a/libsrc/webserver/WebJsonRpc.cpp b/libsrc/webserver/WebJsonRpc.cpp
index 345215d9..a0edf719 100644
--- a/libsrc/webserver/WebJsonRpc.cpp
+++ b/libsrc/webserver/WebJsonRpc.cpp
@@ -5,6 +5,7 @@
 #include "QtHttpClientWrapper.h"
 
 #include <api/JsonAPI.h>
+#include <api/JsonCallbacks.h>
 
 WebJsonRpc::WebJsonRpc(QtHttpRequest* request, QtHttpServer* server, bool localConnection, QtHttpClientWrapper* parent)
 	: QObject(parent)
@@ -14,8 +15,10 @@ WebJsonRpc::WebJsonRpc(QtHttpRequest* request, QtHttpServer* server, bool localC
 {
 	const QString client = request->getClientInfo().clientAddress.toString();
 	_jsonAPI = new JsonAPI(client, _log, localConnection, this, true);
-	connect(_jsonAPI, &JsonAPI::callbackMessage, this, &WebJsonRpc::handleCallback);
+	connect(_jsonAPI, &JsonAPI::callbackReady, this, &WebJsonRpc::sendCallbackMessage);
 	connect(_jsonAPI, &JsonAPI::forceClose, [&]() { _wrapper->closeConnection(); _stopHandle = true; });
+	connect(_jsonAPI->getCallBack().get(), &JsonCallbacks::callbackReady, this, &WebJsonRpc::sendCallbackMessage);
+
 	_jsonAPI->initialize();
 }
 
@@ -31,7 +34,7 @@ void WebJsonRpc::handleMessage(QtHttpRequest* request)
 	}
 }
 
-void WebJsonRpc::handleCallback(QJsonObject obj)
+void WebJsonRpc::sendCallbackMessage(QJsonObject obj)
 {
 	// guard against wrong callbacks; TODO: Remove when JSONAPI is more solid
 	if(!_unlocked) return;
diff --git a/libsrc/webserver/WebJsonRpc.h b/libsrc/webserver/WebJsonRpc.h
index 2eed7ed8..695bcb14 100644
--- a/libsrc/webserver/WebJsonRpc.h
+++ b/libsrc/webserver/WebJsonRpc.h
@@ -26,5 +26,5 @@ private:
 	bool _unlocked = false;
 
 private slots:
-	void handleCallback(QJsonObject obj);
+	void sendCallbackMessage(QJsonObject obj);
 };
diff --git a/libsrc/webserver/WebSocketClient.cpp b/libsrc/webserver/WebSocketClient.cpp
index 3cf8adbc..a4eab0e3 100644
--- a/libsrc/webserver/WebSocketClient.cpp
+++ b/libsrc/webserver/WebSocketClient.cpp
@@ -4,6 +4,7 @@
 
 #include <hyperion/Hyperion.h>
 #include <api/JsonAPI.h>
+#include <api/JsonCallbacks.h>
 
 #include <QTcpSocket>
 #include <QtEndian>
@@ -24,9 +25,11 @@ WebSocketClient::WebSocketClient(QtHttpRequest* request, QTcpSocket* sock, bool
 
 	// Json processor
 	_jsonAPI.reset(new JsonAPI(client, _log, localConnection, this));
-	connect(_jsonAPI.get(), &JsonAPI::callbackMessage, this, &WebSocketClient::sendMessage);
+	connect(_jsonAPI.get(), &JsonAPI::callbackReady, this, &WebSocketClient::sendMessage);
 	connect(_jsonAPI.get(), &JsonAPI::forceClose, this,[this]() { this->sendClose(CLOSECODE::NORMAL); });
 
+	connect(_jsonAPI->getCallBack().get(), &JsonCallbacks::callbackReady, this, &WebSocketClient::sendMessage);
+
 	connect(this, &WebSocketClient::handleMessage, _jsonAPI.get(), &JsonAPI::handleMessage);
 
 	Debug(_log, "New connection from %s", QSTRING_CSTR(client));