Building and running app via Gradle and Android Studio is slower than via Eclipse

Question

I have a multi-project (~10 modules) of which building takes about 20-30 seconds each time. When I press Run in Android Studio, I have to wait every time to rebuild the app,

Answer 1

I recently bought a new SSD and went from Windows to Linux.My build times are now an order of magnitude faster, and no longer annoying.

Though it does not directly answer your question as to why it's slower than eclipse, it shows that the process is disk-bounded and an upgrade to an SSD might be a (somewhat expensive) solution. I'm guessing there will be people googling the issue and ending up here, who might appreciate my experience.