try fix

src/recipient/recipient.go

@@ -419,7 +419,7 @@ func connectToTCPServer(room string, address string) (com *comm.Comm, err error)
 	connection.SetReadDeadline(time.Now().Add(3 * time.Hour))
 	connection.SetDeadline(time.Now().Add(3 * time.Hour))
 	connection.SetWriteDeadline(time.Now().Add(3 * time.Hour))
-
+	connection.SetNoDelay(true)
 	com = comm.New(connection)
 	log.Debug("waiting for server contact")
 	ok, err := com.Receive()

src/sender/sender.go

@@ -420,6 +420,7 @@ func connectToTCPServer(room string, address string) (com *comm.Comm, err error)
 	connection.SetReadDeadline(time.Now().Add(3 * time.Hour))
 	connection.SetDeadline(time.Now().Add(3 * time.Hour))
 	connection.SetWriteDeadline(time.Now().Add(3 * time.Hour))
+	connection.SetNoDelay(true)
 
 	com = comm.New(connection)
 	ok, err := com.Receive()

src/tcp/tcp.go

@@ -2,7 +2,6 @@ package tcp
 
 import (
 	"bufio"
-	"bytes"
 	"net"
 	"sync"
 	"time"
@@ -168,18 +167,14 @@ func pipe(conn1 net.Conn, conn2 net.Conn) {
 				return
 			}
 			writer2.Write(b1)
-			if bytes.Equal(b1, []byte("magic")) {
-				writer2.Flush()
-			}
+			writer2.Flush()
 
 		case b2 := <-chan2:
 			if b2 == nil {
 				return
 			}
 			writer1.Write(b2)
-			if bytes.Equal(b2, []byte("magic")) {
-				writer1.Flush()
-			}
+			writer1.Flush()
 		}
 	}
 }