奇怪的是，在转换为Image视图之前调整UIImage的大小解决了这个问题。

if let inputImage = UIImage(data: category.image ?? Data()) {
        let resizeImage = inputImage.scalePreservingAspectRatio(targetSize: CGSize(width: 25, height: 25))
        Image(uiImage: resizeImage)
        .resizable()
        .scaledToFit()
    }

编码为UIImage

extension UIImage {
        func scalePreservingAspectRatio(targetSize: CGSize) -> UIImage {
            // Determine the scale factor that preserves aspect ratio
            let widthRatio = targetSize.width / size.width
            let heightRatio = targetSize.height / size.height
            
            let scaleFactor = min(widthRatio, heightRatio)
            
            // Compute the new image size that preserves aspect ratio
            let scaledImageSize = CGSize(
                width: size.width * scaleFactor,
                height: size.height * scaleFactor
            )

            // Draw and return the resized UIImage
            let renderer = UIGraphicsImageRenderer(
                size: scaledImageSize
            )

            let scaledImage = renderer.image { _ in
                self.draw(in: CGRect(
                    origin: .zero,
                    size: scaledImageSize
                ))
            }
            return scaledImage
        }
    }