message: Improve defaults for connection
diff: @@ -93,10 +93,10 @@ impl Default for ConnectOptions {
  client_cert: None,
  client_key: None,
  tls_client_config: None,
  - flush_interval: Duration::from_millis(100),
  + flush_interval: Duration::from_millis(1),
  ping_interval: Duration::from_secs(60),
  sender_capacity: 128,
  - subscription_capacity: 1024,
  + subscription_capacity: 4096,
  event_callback: CallbackArg1::<Event, ()>(Box::new(move |event| {
  Box::pin(async move {
  tracing::info!("event: {}", event);
  