得设置emulated performance如图
如果是灰色的无法设置那么解释如下
can‘t change emulated performance of AVD in Android Studio
solution:Actually, this problem seems to be limited to devices with Play Store available, so Nexus 5X and Nexus 5 images will be forced to use Automatic Graphics, but all other devices allow you to choose either Automatic, Hardware or Software graphics.
其实就是选的时候 不要选 Nexus 5X之类的