Why would you? If you write clean maintainable code and are productive using it there's no problem, there are tons of ways of tuning Cake (as most frameworks).

Why would you? If you write clean maintainable code and are productive using it there's no problem, there are tons of ways of tuning Cake (as most frameworks). The default configuration is meant for 'bootstrapping'. However, if you are interested, you can always check out other PHP frameworks (Yii, slim), or if you like all the bell and whistles from Cake and are willing to dive into another language, you can always experiment with ruby (ror, sinatra), node (express) and python (flask).