Improved init task rendering, reduced dom operations.

app/assets/javascripts/app/controllers/_application_controller.coffee

@@ -542,9 +542,11 @@ class App.Controller extends Spine.Controller
     @html App.view('generic/error/unauthorized')(data)
 
   metaTaskUpdate: ->
+    delay = App.TaskManager.renderDelay()
+    return if !delay
     App.Delay.set(
       -> App.Event.trigger 'task:render'
-      App.TaskManager.renderDelay()
+      delay
       'meta-task-update'
     )
 

app/assets/javascripts/app/lib/app_post/task_manager.coffee

@@ -496,10 +496,17 @@ class _taskManagerSingleton extends App.Controller
           'task'
         )
 
-    # set new renderDelayTime
+    # handle init task rendering at loading time, prevent multible, not needed dom operations
+    @initTaskRenderInterval = App.Interval.set(
+      ->
+        App.Event.trigger('task:render')
+      1200
+    )
     App.Delay.set(
       =>
+        App.Interval.clear(@initTaskRenderInterval)
         @renderDelayTime = 20
+        App.Event.trigger('task:render')
       task_count * 450
     )