For serious though. TCP has a handshake to make a connection. UDP doesn’t and if you’re going for low-latency, you probably don’t want retransmission anyway, si

For serious though. TCP has a handshake to make a connection. UDP doesn’t and if you’re going for low-latency, you probably don’t want retransmission anyway, since if you miss the packet it’s too late to do anything about it. If you need the guarantees from TCP, you probably aren’t actually solving a low-latency problem.