Check my Approach
Hello, I tried a method to save the pictures in database in Django and I can guarantee you that this method will be faster. 3 example images shows the time taken to upload the pictures (instance of 12, 299, and 2241 images) Leave me a message I can show you the results in a video. I don't have a production environment but i can assure it will be faster than the time you mentioned in your description. Let me know what you think, cheers!