Downlink data not transmitting immediately for class C device

Hi All,
I am sending confirmed downlink to my Class C device But server is adding confirm downlink to Downlink queue .
Please tell me how resolve this problem

Currently Using -

chirpstack-application-server version - 3.7.0-1-g6a9c690
chirpstack-network-server version - 3.6.0-2-g1d66d30
chirpstack-gateway-bridge version - 3.6.0

Device profile configuration - Class C, RX2 data-rate - 3, LoRaWAN MAC version - 1.0.1, LoRaWAN Regional Parameters revision - A