Why do only some videos on my iPhone 16 Pro play with reduced quality?

Today I noticed that after starting some videos the quality immediately deteriorates and the fps drops too. But after entering the video editing, the quality is already original even with high fps. I should note that all the videos in my gallery are shot on the same settings and this only happens with some (iPhone 16pro)



[Re-Titled by Moderator]

iPhone 16 Pro, iOS 18

Posted on May 23, 2025 1:27 AM

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Posted on May 23, 2025 8:30 AM

Do you use iCloud? Do you have "Optimize Storage" turned on? What you describe would make sense if your phone is using Optimize Storage.


Optimize saves storage by keeping the full sized file at iCloud.com while retaining smaller files on the phone for fast previewing. The phone downloads the full sized file when you need it for editing as required.


Could that be it?


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Question marked as Top-ranking reply

May 23, 2025 8:30 AM in response to mareksotolar

Do you use iCloud? Do you have "Optimize Storage" turned on? What you describe would make sense if your phone is using Optimize Storage.


Optimize saves storage by keeping the full sized file at iCloud.com while retaining smaller files on the phone for fast previewing. The phone downloads the full sized file when you need it for editing as required.


Could that be it?


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Why do only some videos on my iPhone 16 Pro play with reduced quality?

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