I will show you 2 options that you can use to remedy this problem or at least mitigate:
1º - If you use a computer with an Intel processor that has Intel Virtualization technology, install the package that supports Intel CPU choice in the creation of AVD. Open the SDK Manager with the android command and install the package "Intel x86 Atom System Image" for the Android version you want to use as in the figure below:
And when creating an AVD choose CPU "Intel Atom (x86)" as in the figure below:
2º - You can still use another emulator, in case the Genymotion that supports for various versions of android, as well as emulator a real device model (Motorola D1 Razr, Google Nexus, Xperia Sony etc). Just enter this link : Genymotion and download the installer that comes along with Virtualbox to perform emulation and use the Genymotion plugin for Eclipse to run your applications.
Pedro, I think it would be better 'visualisable', if you put the two answers as answers. It is valid you can answer your questions yourself.
– emanuelsn
@Emanuelsn thank you for giving this tip
– Pedro Rangel