Using QueueUpdateDraw() instead of Draw()

The Draw() function still seems to slow down the App
Hence Using QueueUpdateDraw() this makes it a little faster

The Problem now is that the ProgressBar constantly makes request to mpd
which in turn causes the slow down.

main.go

@@ -338,8 +338,9 @@ func main() {
 	})
 
 	go func() {
+		drawFunc := func() { ui.ProgressFunction() }
 		for {
-			ui.Ui.App.Draw()
+			ui.Ui.App.QueueUpdateDraw(drawFunc)
 			time.Sleep(time.Second)
 		}
 	}()

ui/app.go

@@ -25,7 +25,7 @@ type Application struct {
 func NewApplication() *Application {
 
 	pBar := NewProgressBar()
-	pBar.SetProgressFunc(progressFunction)
+	pBar.SetProgressFunc(ProgressFunction)
 	expandedView := tview.NewTable()
 	Navbar := tview.NewTable()
 	searchBar := tview.NewInputField()

ui/progressBar.go

@@ -82,7 +82,7 @@ func (self *ProgressBar) Draw(screen tcell.Screen) {
 		x, y+2, _width-OFFSET, tview.AlignRight, tcell.ColorWhite)
 }
 
-func progressFunction() (string, string, string, float64) {
+func ProgressFunction() (string, string, string, float64) {
 	_currentAttributes, err := CONN.CurrentSong()
 	var song, top, text string
 	var percentage float64