Turn off auto enhance on Instagram iPhone 15 Pro etc.

I just received the iPhone 15 Pro. I am finding the macro function does a lot of camera switching and takes blurry shots which is super frustrating, but what is more frustrating is that I can't seem to post any photos to Instagram without automatic photo enhancement. As soon as I select a photo from my library, it is auto enhanced leading to unnatural colors and blow out mostly. They look terrible. I turned off HDR and did all of the tricks suggested for taking photos, but can't seem to figure this one out. Also, any macro suggestions are appreciated. We compared my macro shots with my husbands iPhone 13 and his are much better. Any ideas?