在下面的代码中，我将Categories从CoreData加载到SwiftUI中的List视图中，但由于某种原因，视图在加载时似乎有点慢。什么是延迟加载对象的最佳方式，因为它们显示在屏幕上。换句话说，我如何加快加载时间。如果我将主VStack更改为LazyVStack，它不会显示任何类别。
如何在SwiftUI的列表视图中延迟加载CoreData中的对象？

核心数据实体

类别

属性

产品名称
图片展示

class CategoryServiceModel: ObservableObject{
            
        let manager: CoreDataManager
        
        @Published var categories: [Category] = []  

        init(coreDataManager: CoreDataManager = .instance){
            self.manager = coreDataManager
            loadCategories()
        }

        func loadCategories(){
            let request = NSFetchRequest<Category>(entityName: "Category")

            let sort = NSSortDescriptor(keyPath: \Category.name, ascending: true)
            request.sortDescriptors = [sort]
            do{
                categories =  try manager.context.fetch(request)
                removeDuplicateCategoriesIfNeeded()
            }catch let error{
                print("Error fetching categories. \(error.localizedDescription)")
            }
        }
    }

    struct CategoriesView: View {
        @EnvironmentObject private var categorySM: CategoryServiceModel
        var body: some View {
            NavigationStack {
                VStack{ 
                    List{
                        ForEach(categorySM.categories, id:\.self) { category in
                                let image = UIImage(data: category.image ?? Data())
                                let imageSize: CGFloat = 35
                                HStack{
                                    if let inputImage = UIImage(data: category.image ?? Data()) {
                                        Image(uiImage: inputImage)
                                            .resizable()
                                            .aspectRatio(contentMode: .fit)
                                            .frame(width: imageSize, height: imageSize)
                                            .padding(10)
                                            .clipShape(Circle())
                                            .overlay(Circle().stroke(imageColor, lineWidth: 1))
                                    } 
                                    Text(category.name ?? "")
                                }
                            }
                        }
                    }
                }
            }
    }