Managing communications based on network conditions

Various examples are directed to optimizing communications based on network conditions. A computing device may be programmed to receive from a process executing at the computing device a network transmission request. The network transmission request may indicate payload data and a recipient computing device. The computing device may transmit to a recipient computing device a plurality of data packets. Each of the plurality of data packets may comprise at least a portion of the payload data. The computing device may detect an improvement in network conditions and accelerate retransmission of at least one data packet.