Slow loading of Ionic 3 images

Question

Good afternoon,

I developed an app selling products and, is working perfectly. My only problem is how to upload images.

I downloaded some store apps, and the images appear almost instantly and in my app it takes 5 to 9 seconds to load.

I’m uploading the images as follows: - I call my API; - In API Gero the image in Base64; - Return the API to the Base64 app from the image;

Does it have any way to load images faster.

I am using Ionic 3 and my API is in C# . Net.