iPhone photos out of order

I recently (via my computer) added a bunch of old photos into my Photos from an old external hard drive, so that they could all be in one place and all be saved in iCloud together. They are all dated correctly, and they are in chronological order (by date) in my Photos app in my computer, but on my iPhone they seem to have organized themselves in the order that I've uploaded them. They are still dated correctly, so how do I get them to organize themselves by date, rather than when they were uploaded?? This is really bugging me, and doesn't really even make sense. When I go to Albums > All Photos they're out of order, but if I go to Moments they are in the correct order. I tried just mentally switching over to looking at my photos in the Moments tab, but that doesn't work, because if I want to upload something to Instagram or use a third party app to edit a photo, I can't find it at all because it's way back in my Photos, before pics from 2004.