Systems and methods described herein allow mobile network operators to provide an adaptive quality of service (QoS) approach for application providers. A network device in a core network receives a QoS monitoring report based on QoS monitoring by an access station. The QoS monitoring report includes data for QoS parameters for network services in a default QoS flow supporting a protocol data unit (PDU) session. Based on the QoS monitoring report, the network device determines if the default QoS flow supports a required service level for the PDU session. When the network device determines that the default QoS flow does not support the required service level for the PDU session, the network device automatically activates a dedicated QoS flow to support the PDU session with the required service level.