Ember CLI is too slow to use it

I can't use ember CLI because is too slow. How should I use something that re-compiles in every change and takes 25 seconds?

Build successful - 22102ms.

Slowest Trees                                 | Total               
----------------------------------------------+---------------------
SassCompiler                                  | 10153ms             
ConcatWithMaps                                | 3954ms              
BroccoliMergeTrees                            | 1906ms              
BroccoliMergeTrees                            | 1811ms              

Slowest Trees (cumulative)                    | Total (avg)         
----------------------------------------------+---------------------
SassCompiler (1)                              | 10153ms             
ConcatWithMaps (4)                            | 5154ms (1288 ms)    
BroccoliMergeTrees (4)                        | 3759ms (939 ms)     

My project iq empty, I'm using only ember sass as dependency and all my routes, controllers, models and templates are empty.

Is this normal? Can't I turn off something? For example the live reload I'm not using, how could I turn off this?

related: http://ift.tt/1WqdzDd