It seems Microsoft bit off more than it could chew with DALL-E 3. Multiple users took to social media platforms over the weekend to highlight their frustrations, indicating that Bing Image Creator was taking longer to generate images - up to 2 hours!

http://windowscopilot.news/2023/10/04/bing-image-creator-slowed-to-a-crawl-over-the-weekend-due-to-dall-e-3/