Improve Android Emulator Performance on Windows 7 x64
The emulator is slow because it's an qemu that emulates a whole different CPU architecture as it's used by consumer PCs: ARM (vs. x86(_64) on your PC)

This means that every CPU instruction on the emulator's ARM CPU has to be emulated, which is per se slow. Also the emulator is AFAIK single-threaded. This means that speed-up can only be achieved by fast CPUs cores - multi-cores won't help here - and a reasonable amount of RAM.