We are uploading image under path like /content/dam/a/b/c and image uploaded successfully in few seconds but Quick Publish not showing after image uploaded and seeing after a minute.
Could you please suggest us what need to check here and why it is taking that much time to see Quick Publish button.
We are using AEM 6.4.5 version
Please let us know if any logs can be verified.
I think this could be because of the image size, there might be a possibility after uploading the very high resolution image.
Update Asset Workflow takes time to create renditions of that image that is the reason it takes time to show quick publish button.
Try adding smaller resolution image and check if this is happening, or at last check error logs if you find anything suspicious in particular.