build & run to test Android game on emulator is very VERY SLOW!!!!

sorry my English is poor.I hope you understand me.

when I prees Build & run button to test game on emulator I wait it so long time around 5 minutes after that It can be played (slow framerate) but I test on my real device(Galaxy Tap) no problem.How to fix it to build faster on emulator? thank

Android emulator is most likely using Qemu which is an ARM virtual machine. Qemu interprets ARM instructions (as used by Android phones), and so runs many times slower than a real ARM processor as found in the phone.

Emulation compared to hardware is going to be slower most of the time. Do you have your emulation device set up just exactly like the hardware on your real device?