Hello braydan194,
Thanks for posting in the Apple Support Communities.
One thing you might want to check is your storage availability. It's possible this could affect the overall quality and performance for your iPhone. Follow the steps below to review your available storage space and if needed, try freeing up space to see if that helps.
- Open Settings > General
- Select iPhone Storage and review available amount
- If you need to free up space, this article can help: How to check the storage on your iPhone and iPad - Apple Support
If that's not the issue, we've got a few questions that might help us narrow down a solution.
- Can you tell us how you're determining the photos are received in a lower quality state?
- Are you coming to this conclusion visually or from the metadata for the images received?
- If simply comparing from one device to the next, are the devices of the same model and have the same exact iOS version installed?
Best regards.