Photo storage 2.5 times larger in Iphone 14 Pro compared to Iphone 11 Pro for same photos

I upgraded from iphone 11 Pro 256GB to iphone 14 pro 256GB in Jan 2023. Ever since then I have periodically received the iphone storage full message. I would restart phone and it would temporarily resolve it. The frequency has increased to a daily occurrence and I now basically have no storage left on my phone. The issue is caused by the increased storage consumption for photos which seems to be getting worse even when I delete photos.

With my 11 Pro I was only using about half the phone storage so didn't think I needed to increase the phone storage capacity to 512GB as 256GB was enough. I don't take photos in raw mode so individual photo size wasn't going to be an issue for me.

However there is an issue with the storage space that the iphone 14 Pro is consuming for the exact same set of photos compared to the iphone 11 Pro. I still have the original device and both are synching to my icloud storage but the 14 Pro uses 223.91 GB for the exact same photos that the 11 Pro only uses 95.3GB for.

I have about 6K photos and 267 videos of which most were from older phones. since getting the 14 I have taken about 290 photos but the storage difference has been there from the start.

and yes I have photo optimisation on.

the picture below shows the number of photos, videos and storage comparisons across the 2 phones. I have even compared the file sizes appearing on the metadata of individual photos and they appear the same on both phones and the metadata knows whether the photo or video was taken on the 11 Pro or the 14 Pro.

I've read articles that suggest its newer features causing the issue such as live text, detected text etc. I have tried turning these off and it has made no difference to the phone.

Also note that not all the new photos taken are 1.8MB. some are 300KB others are 1MB

Is anyone else having the same issue?

does anyone have suggestions on how to resolve it? (that isnt optimisation and turn off the features appearing in the table as those have already been tried)

i will log with apple but I suspect they will just say back-up to icloud and reset phone. Or alternatively upgrade to 16.5 in the hope it magically fixes it but i don't have enough remaining space thanks to the photo issue.