DALLE image generation taking too long

I have been using the DALLE 3 api to generate images in my chatbot.

The time it takes to generate an image is really long though compared to the time it takes ChatGPT. How can this time be reduced?

Are there any other image generation APIs apart from Open AI that are fast? Or is there some specific prompt engineering hack that can be used. Cause this long image generation time is killing the user experience in my product.

Would appreciate any guidance, thanks!