สอบถาม VB.net MySQL บนโฮส Update ข้อมูลช้ามาก ขอคำชี้แนะครับ

        /// <summary>
        /// ข้อมูลฝ่าย เพิ่ม/แก้ไข/ลบ
        /// </summary>
        /// <param name="param">JObject param</param>
        /// <returns>String.Empty = success</returns>
        [HttpPost]
        [HttpPatch]
        public async Task<IActionResult> Post_Division(JObject param) //(List<JObject> param)
        {
            var hasError = string.Empty; // ""

            var gId = (int)param.GetValue("Id", StringComparison.OrdinalIgnoreCase);
            var gCode = (string)param.GetValue("xCode", StringComparison.OrdinalIgnoreCase);
            var gNameTH = (string)param.GetValue("xNameTH", StringComparison.OrdinalIgnoreCase);
            var gNameUS = param.GetValue("xNameUS", StringComparison.OrdinalIgnoreCase).Value<string>();
            var gRemark = param.GetValue("Remark", StringComparison.OrdinalIgnoreCase).Value<string>();
            var gActFlag = param.GetValue("actFlag", StringComparison.OrdinalIgnoreCase).Value<string>().ToUpper(); //AED

            var objDivision = new sexy_Database.Models.Settings.MDivision
            {
                Id = gId,
                Code = gCode,
                NameTH = gNameTH,
                NameUS = gNameUS,
                Remark = gRemark
            };

            try
            {
                using (var cn = SexyDatabase.SexyConnection())
                {
                    cn.Open(); //มั่นใจว่าท้องแน่นอน
                    using (var trans = cn.BeginTransaction())
                    {
                       //ของจ่าก็วนลูปตรงนี้เพิ่ม
                        try
                        {
                            switch (gActFlag)
                            {
                                case "A":
                                    cn.Insert<sexy_Database.Models.Settings.MDivision>(objDivision, trans);
                                    break;
                                case "E":
                                    cn.Update<sexy_Database.Models.Settings.MDivision>(objDivision, trans);
                                    break;
                                case "D":
                                    cn.Delete<sexy_Database.Models.Settings.MDivision>(objDivision, trans);
                                    break;
                                //default:
                                // ไปซ่องดีกว่า
                                //    break;
                            }
                            trans.Commit();
                        }
                        catch (Exception ex2)
                        {
                            hasError = ex2.Message;
                            trans.Rollback();
                        }
                    }
                }
            }
            catch (Exception ex1)
            {
                hasError = ex1.Message;                
            }
            await Task.Delay(0); //Fake async/await
            return Ok(hasError);
        }