How to get rid of lags in sounddevice in python3?

Question

Python

Python. I am using the sounddevice library.
Through the callback interface, I use sound capture and similarly playback on the device.
If you send data through a "temporary variable", then everything more or less works without delays and problems, but when you try to transfer information through socket.send, socket.recv and a variable, a lag appears + buffer sizes, sent data and received data become are equal (block_size is the same on sending and receiving).
What could be the problem? It may be that the data, before being sent over the network, needs to be somehow converted?