diff --git a/web/service/inbound.go b/web/service/inbound.go
index 02311cdb..b116514d 100644
--- a/web/service/inbound.go
+++ b/web/service/inbound.go
@@ -20,10 +20,7 @@ type InboundService struct {
 }
 
 const (
-	// Keep query variables below SQLite's classic 999 limit.
-	safeSQLVariablesPerQuery = 900
-	// Save in small chunks so row-column placeholders stay under SQL var limits.
-	safeSaveBatchSize = 50
+	safeBatchSize = 500
 )
 
 func (s *InboundService) GetInbounds(userId int) ([]*model.Inbound, error) {
@@ -796,6 +793,11 @@ func (s *InboundService) addInboundTraffic(tx *gorm.DB, traffics []*xray.Traffic
 	return nil
 }
 
+type newExpiryTime struct {
+	Email         string
+	NewExpiryTime int64
+}
+
 func (s *InboundService) addClientTraffic(tx *gorm.DB, traffics []*xray.ClientTraffic) (err error) {
 	if len(traffics) == 0 {
 		// Empty onlineUsers
@@ -812,14 +814,14 @@ func (s *InboundService) addClientTraffic(tx *gorm.DB, traffics []*xray.ClientTr
 		emails = append(emails, traffic.Email)
 	}
 	dbClientTraffics := make([]*xray.ClientTraffic, 0, len(traffics))
-	for start := 0; start < len(emails); start += safeSQLVariablesPerQuery {
-		end := start + safeSQLVariablesPerQuery
+	for i := 0; i < len(emails); i += safeBatchSize {
+		end := i + safeBatchSize
 		if end > len(emails) {
 			end = len(emails)
 		}
 
-		batchClientTraffics := make([]*xray.ClientTraffic, 0, end-start)
-		err = tx.Model(xray.ClientTraffic{}).Where("email IN ?", emails[start:end]).Find(&batchClientTraffics).Error
+		batchClientTraffics := make([]*xray.ClientTraffic, 0, end-i)
+		err = tx.Model(xray.ClientTraffic{}).Where("email IN ?", emails[i:end]).Find(&batchClientTraffics).Error
 		if err != nil {
 			return err
 		}
@@ -831,7 +833,20 @@ func (s *InboundService) addClientTraffic(tx *gorm.DB, traffics []*xray.ClientTr
 		return nil
 	}
 
-	dbClientTraffics, err = s.adjustTraffics(tx, dbClientTraffics)
+	inboundExpiryTimeMap := make(map[int][]newExpiryTime, 0)
+	for index, t := range dbClientTraffics {
+		if t.ExpiryTime < 0 {
+			newClientExpiryTime := (time.Now().Unix() * 1000) - int64(t.ExpiryTime)
+			newExpiryTime := newExpiryTime{
+				Email:         t.Email,
+				NewExpiryTime: newClientExpiryTime,
+			}
+			inboundExpiryTimeMap[t.InboundId] = append(inboundExpiryTimeMap[t.InboundId], newExpiryTime)
+			dbClientTraffics[index].ExpiryTime = newClientExpiryTime
+		}
+	}
+
+	err = s.adjustTraffics(tx, inboundExpiryTimeMap)
 	if err != nil {
 		return err
 	}
@@ -856,13 +871,13 @@ func (s *InboundService) addClientTraffic(tx *gorm.DB, traffics []*xray.ClientTr
 		p.SetOnlineClients(onlineClients)
 	}
 
-	for start := 0; start < len(dbClientTraffics); start += safeSaveBatchSize {
-		end := start + safeSaveBatchSize
+	for i := 0; i < len(dbClientTraffics); i += safeBatchSize {
+		end := i + safeBatchSize
 		if end > len(dbClientTraffics) {
 			end = len(dbClientTraffics)
 		}
 
-		err = tx.Save(dbClientTraffics[start:end]).Error
+		err = tx.Save(dbClientTraffics[i:end]).Error
 		if err != nil {
 			logger.Warning("AddClientTraffic update data ", err)
 			return nil
@@ -872,79 +887,70 @@ func (s *InboundService) addClientTraffic(tx *gorm.DB, traffics []*xray.ClientTr
 	return nil
 }
 
-func (s *InboundService) adjustTraffics(tx *gorm.DB, dbClientTraffics []*xray.ClientTraffic) ([]*xray.ClientTraffic, error) {
-	inboundIds := make([]int, 0, len(dbClientTraffics))
-	seenInboundIds := make(map[int]struct{}, len(dbClientTraffics))
-	for _, dbClientTraffic := range dbClientTraffics {
-		if dbClientTraffic.ExpiryTime < 0 {
-			if _, seen := seenInboundIds[dbClientTraffic.InboundId]; seen {
-				continue
-			}
-			inboundIds = append(inboundIds, dbClientTraffic.InboundId)
-			seenInboundIds[dbClientTraffic.InboundId] = struct{}{}
-		}
+func (s *InboundService) adjustTraffics(tx *gorm.DB, inboundExpiryTimeMap map[int][]newExpiryTime) error {
+	if len(inboundExpiryTimeMap) == 0 {
+		return nil
 	}
 
-	if len(inboundIds) > 0 {
-		inbounds := make([]*model.Inbound, 0, len(inboundIds))
-		for start := 0; start < len(inboundIds); start += safeSQLVariablesPerQuery {
-			end := start + safeSQLVariablesPerQuery
-			if end > len(inboundIds) {
-				end = len(inboundIds)
-			}
-
-			batchInbounds := make([]*model.Inbound, 0, end-start)
-			err := tx.Model(model.Inbound{}).Where("id IN ?", inboundIds[start:end]).Find(&batchInbounds).Error
-			if err != nil {
-				return nil, err
-			}
-			inbounds = append(inbounds, batchInbounds...)
+	inboundIds := make([]int, 0)
+	for inId := range inboundExpiryTimeMap {
+		inboundIds = append(inboundIds, inId)
+	}
+	inbounds := make([]*model.Inbound, 0, len(inboundIds))
+	for i := 0; i < len(inboundIds); i += safeBatchSize {
+		end := i + safeBatchSize
+		if end > len(inboundIds) {
+			end = len(inboundIds)
 		}
-		for inbound_index := range inbounds {
-			settings := map[string]interface{}{}
-			json.Unmarshal([]byte(inbounds[inbound_index].Settings), &settings)
-			clients, ok := settings["clients"].([]interface{})
-			if ok {
-				var newClients []interface{}
-				for client_index := range clients {
-					c := clients[client_index].(map[string]interface{})
-					for traffic_index := range dbClientTraffics {
-						if dbClientTraffics[traffic_index].ExpiryTime < 0 && c["email"] == dbClientTraffics[traffic_index].Email {
-							oldExpiryTime := c["expiryTime"].(float64)
-							newExpiryTime := (time.Now().Unix() * 1000) - int64(oldExpiryTime)
-							c["expiryTime"] = newExpiryTime
-							dbClientTraffics[traffic_index].ExpiryTime = newExpiryTime
-							break
-						}
+
+		batchInbounds := make([]*model.Inbound, 0, end-i)
+		err := tx.Model(model.Inbound{}).Where("id IN ?", inboundIds[i:end]).Find(&batchInbounds).Error
+		if err != nil {
+			return err
+		}
+		inbounds = append(inbounds, batchInbounds...)
+	}
+	for inbound_index := range inbounds {
+		settings := map[string]interface{}{}
+		json.Unmarshal([]byte(inbounds[inbound_index].Settings), &settings)
+		clients, ok := settings["clients"].([]interface{})
+		inbEmails := inboundExpiryTimeMap[inbounds[inbound_index].Id]
+		if ok {
+			var newClients []interface{}
+			for client_index := range clients {
+				c := clients[client_index].(map[string]interface{})
+				for index := range inbEmails {
+					if c["email"] == inbEmails[index].Email {
+						c["expiryTime"] = inbEmails[index].NewExpiryTime
+						break
 					}
-					newClients = append(newClients, interface{}(c))
 				}
-				settings["clients"] = newClients
-				modifiedSettings, err := json.MarshalIndent(settings, "", "  ")
-				if err != nil {
-					return nil, err
-				}
-
-				inbounds[inbound_index].Settings = string(modifiedSettings)
+				newClients = append(newClients, interface{}(c))
 			}
-		}
-
-		for start := 0; start < len(inbounds); start += safeSaveBatchSize {
-			end := start + safeSaveBatchSize
-			if end > len(inbounds) {
-				end = len(inbounds)
-			}
-
-			err := tx.Save(inbounds[start:end]).Error
+			settings["clients"] = newClients
+			modifiedSettings, err := json.MarshalIndent(settings, "", "  ")
 			if err != nil {
-				logger.Warning("AddClientTraffic update inbounds ", err)
-				logger.Error(inbounds[start:end])
-				break
+				return err
 			}
+
+			inbounds[inbound_index].Settings = string(modifiedSettings)
 		}
 	}
 
-	return dbClientTraffics, nil
+	for i := 0; i < len(inbounds); i += safeBatchSize {
+		end := i + safeBatchSize
+		if end > len(inbounds) {
+			end = len(inbounds)
+		}
+
+		err := tx.Save(inbounds[i:end]).Error
+		if err != nil {
+			logger.Warning("AddClientTraffic update inbounds ", err)
+			break
+		}
+	}
+
+	return nil
 }
 
 func (s *InboundService) autoRenewClients(tx *gorm.DB) (bool, int64, error) {