diff --git a/internal/app/handler/modem.go b/internal/app/handler/modem.go
index 9e0c136..c9b6a4c 100644
--- a/internal/app/handler/modem.go
+++ b/internal/app/handler/modem.go
@@ -45,10 +45,6 @@ EID: %s
 			}
 			m.Lock()
 			info, err := lpac.NewCmd(context.Background(), usbDevice).Info()
-			ns, _ := lpac.NewCmd(context.Background(), usbDevice).NotificationList()
-			for _, n := range ns {
-				fmt.Println(n.ICCID)
-			}
 			m.Unlock()
 			if err != nil {
 				slog.Error("failed to get eUICC info", "error", err)
diff --git a/internal/pkg/conversation/conversation.go b/internal/pkg/conversation/conversation.go
index e074032..6b22f71 100644
--- a/internal/pkg/conversation/conversation.go
+++ b/internal/pkg/conversation/conversation.go
@@ -29,7 +29,7 @@ var conversationsInstance *conversations
 func NewConversation(bot *telebot.Bot) *conversations {
 	conversationsInstance = &conversations{
 		bot:           bot,
-		conversations: make(map[int64]*conversation),
+		conversations: make(map[int64]*conversation, 10),
 	}
 	conversationsInstance.handleText()
 	return conversationsInstance
diff --git a/internal/pkg/modem/manager.go b/internal/pkg/modem/manager.go
index 6904510..4d0bdc8 100644
--- a/internal/pkg/modem/manager.go
+++ b/internal/pkg/modem/manager.go
@@ -25,7 +25,7 @@ type Manager struct {
 	reboot chan struct{}
 }
 
-var Instance *Manager
+var managerInstance *Manager
 
 func NewManager() (*Manager, error) {
 	mmgr, err := modemmanager.NewModemManager()
@@ -37,18 +37,17 @@ func NewManager() (*Manager, error) {
 		return nil, err
 	}
 
-	m := &Manager{
+	managerInstance = &Manager{
 		mmgr:   mmgr,
-		modems: make(map[string]*Modem, 1),
+		modems: make(map[string]*Modem, 10),
 		reboot: make(chan struct{}, 1),
 	}
-	go m.watch()
-	Instance = m
-	return m, nil
+	go managerInstance.watch()
+	return managerInstance, nil
 }
 
 func GetManager() *Manager {
-	return Instance
+	return managerInstance
 }
 
 func (m *Manager) watch() error {
@@ -57,7 +56,7 @@ func (m *Manager) watch() error {
 			slog.Error("failed to watch modems", "error", err)
 			panic(err)
 		}
-		time.Sleep(5 * time.Second)
+		time.Sleep(1 * time.Second)
 	}
 }