diff --git a/pkg/config/constants.go b/pkg/config/constants.go
index 071215c6..4f142edf 100644
--- a/pkg/config/constants.go
+++ b/pkg/config/constants.go
@@ -15,7 +15,7 @@ const (
 	MaxDurationWaitBeforeCleanRoomWebhook    = 1 * time.Minute
 	WaitDurationIfRoomInProgress             = 300 * time.Millisecond
 
-	DefaultWebsocketQueueSize  = 200
+	DefaultWebsocketQueueSize  = 1000
 	DefaultWebhookQueueSize    = 200
 	UserWebsocketChannel       = "plug-n-meet-user-websocket"
 	WhiteboardWebsocketChannel = "plug-n-meet-whiteboard-websocket"
diff --git a/pkg/models/websocket_channels.go b/pkg/models/websocket_channels.go
index efa5513f..d2062f39 100644
--- a/pkg/models/websocket_channels.go
+++ b/pkg/models/websocket_channels.go
@@ -66,10 +66,12 @@ func SubscribeToUserWebsocketChannel() {
 			if err != nil {
 				log.Errorln(err)
 			}
-			if res.Type == "sendMsg" {
-				m.HandleDataMessages(res.DataMsg, res.RoomId, res.IsAdmin)
-			} else if res.Type == "deleteRoom" {
-				config.AppCnf.DeleteChatRoom(res.RoomId)
+			if res != nil {
+				if res.Type == "sendMsg" {
+					m.HandleDataMessages(res.DataMsg, res.RoomId, res.IsAdmin)
+				} else if res.Type == "deleteRoom" {
+					config.AppCnf.DeleteChatRoom(res.RoomId)
+				}
 			}
 		})
 	}
@@ -103,8 +105,9 @@ func SubscribeToWhiteboardWebsocketChannel() {
 			err = json.Unmarshal([]byte(msg.Payload), res)
 			if err != nil {
 				log.Errorln(err)
+			} else {
+				m.HandleDataMessages(res.DataMsg, res.RoomId, res.IsAdmin)
 			}
-			m.HandleDataMessages(res.DataMsg, res.RoomId, res.IsAdmin)
 		})
 	}
 }
@@ -138,8 +141,9 @@ func SubscribeToSystemWebsocketChannel() {
 			err = json.Unmarshal([]byte(msg.Payload), res)
 			if err != nil {
 				log.Errorln(err)
+			} else {
+				m.HandleDataMessages(res.DataMsg, res.RoomId, res.IsAdmin)
 			}
-			m.HandleDataMessages(res.DataMsg, res.RoomId, res.IsAdmin)
 		})
 	}
 }
diff --git a/pkg/models/websocket_service.go b/pkg/models/websocket_service.go
index fc77c065..5b900774 100644
--- a/pkg/models/websocket_service.go
+++ b/pkg/models/websocket_service.go
@@ -128,8 +128,24 @@ func (w *WebsocketServiceModel) handleChat() {
 	}
 	config.AppCnf.RUnlock()
 
-	if len(to) > 0 {
-		socketio.EmitToList(to, jm, socketio.BinaryMessage)
+	l := len(to)
+	if l > 0 {
+		var wg sync.WaitGroup
+		// for network related issue delivery can be delay
+		// if this continues then messages will be overflow & drop
+		// using concurrent will give better result
+		// if one user have bad connection then waiting only for him
+		wg.Add(l)
+		for _, t := range to {
+			go func(u string) {
+				defer wg.Done()
+				err := socketio.EmitTo(u, jm, socketio.BinaryMessage)
+				if err != nil {
+					log.Errorln(err)
+				}
+			}(t)
+		}
+		wg.Wait()
 	}
 }
 
@@ -253,16 +269,11 @@ func (w *WebsocketServiceModel) handleWhiteboard() {
 		// if this continues then messages will be overflow & drop
 		// using concurrent will give better result
 		// if one user have bad connection then waiting only for him
-		// as whiteboard transmit a lot of data very frequently
-		// at present we'll implement it here only
 		wg.Add(l)
 		for _, t := range to {
 			go func(u string) {
 				defer wg.Done()
-				err := socketio.EmitTo(u, jm, socketio.BinaryMessage)
-				if err != nil {
-					log.Errorln(err)
-				}
+				_ = socketio.EmitTo(u, jm, socketio.BinaryMessage)
 			}(t)
 		}
 		wg.Wait()
@@ -391,7 +402,20 @@ func (w *WebsocketServiceModel) handleSpeechSubtitleText() {
 	}
 	config.AppCnf.RUnlock()
 
-	if len(to) > 0 {
-		socketio.EmitToList(to, jm, socketio.BinaryMessage)
+	l := len(to)
+	if l > 0 {
+		var wg sync.WaitGroup
+		// for network related issue delivery can be delay
+		// if this continues then messages will be overflow & drop
+		// using concurrent will give better result
+		// if one user have bad connection then waiting only for him
+		wg.Add(l)
+		for _, t := range to {
+			go func(u string) {
+				defer wg.Done()
+				_ = socketio.EmitTo(u, jm, socketio.BinaryMessage)
+			}(t)
+		}
+		wg.Wait()
 	}
 }