一直使用ADB screenshots

[EndstoneV]

连接模拟器后一直使用ADB screenshots，并提示效率低

[10:01:24][DEBUG]<airtest.core.android.adb> （某路径）\AirtestIDE\airtest\core\android\static\adb\windows\adb.exe -P 5037 -s 127.0.0.1:7555 shell screencap -p
（某路径）\AirtestIDE\airtest\core\android\cap_methods\adbcap.py:10: UserWarning: Currently using ADB screenshots, the efficiency may be very low.
  warnings.warn("Currently using ADB screenshots, the efficiency may be very low.")

加入语句init_device(platform="Android", cap_method="MINICAP")后依然如此