We converted our app from Ember 1 to Ember 2.3, as the conversion process is taking pace and the models are increasing one major issue was encountered… Very Very Slow Loading of the app. I tried a lot to debug the slowness by re-writing the route code of each route. Finally I commented code of Application Route .js and .hbs code and just wrote
Application Route, and I noticed that it still is taking that long time to load. That means something prior to application route gets load and excute.
If u can tell a way out to handle this slowness