关于域模型逻辑的性能问题

Question

我有一个域模型，用于确定用户是否有任何访问权限。

在每个Web请求中从数据库加载此类。

只有当数据库将此数据加载到域对象中时，才会访问属性上用于确定访问限制逻辑的setter。

我应该关注这个领域模型中的逻辑是否无法实现？

public class AccessInfo
    {
        private const int DefaultTempSearchDailyLimit = 25;

        public AccessInfo()
        {
            Subscriptions = new List<Subscription>();
            OrganisationalUnit = new OrganisationalUnit();
        }

        public OrganisationalUnit OrganisationalUnit { get; set; }

        private int limit;
        public int Limit
        {
            get { return CalculateLimit(); }
            set { limit = value; }
        }

        public int Remaining
        {
            get
            {
                var remaining = Limit - Downloads;

                return remaining < 0 ? 0 : remaining;
            }
        }

        public List<Subscription> Subscriptions { get; set; }

        public int Downloads { get; set; }

        public bool HasEnoughAccess(int numberOfAccessNeeded)
        {
            return Remaining >= numberOfAccessNeeded;
        }

        private int CalculateLimit()
        {
            int userLimit;

            if (OrganisationalUnit.IsOuReedBranch)
            {
                userLimit = OrganisationalUnit.FlexCandidateLimit;
                return userLimit;
            }

            switch (OrganisationalUnit.OuType)
            {
                case (int)Enums.OuType.RecruitmentAgency:
                    var cvSearchSub = Subscriptions.SingleOrDefault(s => s.FeatureId == (int) FeatureFact.CVAccess);
                    var tempSearchSub = Subscriptions.SingleOrDefault(s => s.FeatureId == (int) FeatureFact.TempSearch);
                    userLimit = cvSearchSub != null && tempSearchSub == null ? DefaultTempSearchDailyLimit : tempSearchSub != null ? tempSearchSub.Data : 0;
                    break;
                default:
                    userLimit = OrganisationalUnit.FlexCandidateLimit;
                    break;
            }

            return userLimit;
        }
    }