// has not been changed from its "default" value, if it has been changed honor new settings.
	if kvs.GetWithDefault(Speed, DefaultKVS) == "default" {
		if kvs.Get(Delay) != "" && kvs.Get(MaxWait) != "" {
			if err = lookupDeprecatedScannerConfig(kvs, &cfg); err != nil {
				return cfg, err
			}
		}
	}

	switch speed := env.Get(EnvSpeed, kvs.GetWithDefault(Speed, DefaultKVS)); speed {
	case "fastest":