CoreData 保存字典的时间太长

问：

我正在保存一本包含 1000 个项目的字典，大约需要 3/4 秒才能完成。在我看来，这似乎是很长一段时间。当我调用 时，这成功发生。有没有办法让它更快？addEmojisDictionary

class CoreDataManager: ObservableObject {
    
    static let shared = CoreDataManager()
    
    let container: NSPersistentContainer
    @Published var emojisEntities: [EmojiEntity] = []
    
    init() {
        container = NSPersistentContainer(name: "DataModel")
        container.loadPersistentStores { description, error in
            if let error = error {
                print("ERROR LOADING CORE DATA. \(error)")
            }
        }
    }

    func addEmojisDictionary(_ emojisDictionary: [String: String]) {
        print("addEmojis - start")
        emojisDictionary.values.forEach { value in
            let newEmoji = EmojiEntity(context: self.container.viewContext)
            newEmoji.urlString = value
            self.saveData()
        }
        print("addEmojis - end")
    }
    
    private func saveData() {
        do {
            if container.viewContext.hasChanges {
                try container.viewContext.save()
            }
        } catch {
            print("Error saving: \(error)")
        }
    }
    
}