其上的蓝牙经常断线，并且wifi连接速度经常很慢、很慢、很慢。####[['蓝牙', 'PORTS#OPERATION_PERFORMANCE', 'negative'], ['wifi', 'PORTS#OPERATION_PERFORMANCE', 'negative'], ['wifi', 'PORTS#OPERATION_PERFORMANCE', 'negative'], ['wifi', 'PORTS#OPERATION_PERFORMANCE', 'negative']]