Hi Eduardo,
Thanks for your idea. We've recently released Reactive Web Apps, a new generation of web apps that takes the best of mobile features. With it we've also released several improvements that also apply to mobile. One of them is the possibility of making aggregates depend on other aggregates, and the platform automatically optimizes the order:

You also have the Fetch property, to make some aggregates just run on demand. You can read about these and a lot more improvement in this forum post.
Keep your feedback coming.
Thanks,
Tiago Simões