My wife has an iPhone X with a photo library stored in iCloud Photos of roughly 140,565 photos, 2,340 videos taking up about 655 GB. The photos are set to “Optimize iPhone Storage” and there is 64 GB of free space on the device. She is having issues with apps that access her photos. When posting to Instagram it can take about 5 minutes for the photos to load photos and another several minutes on selection. Uploading to Facebook usually just hangs. In the Photos app, recently captured videos take several minutes to load and photos can take over a minute to clear up. She’s had this issue for a while (since before iOS 11) and on her previous phone (iPhone 7 Plus); we have tried doing a full reset and starting off fresh so I don’t think it’s related to something in her current configuration. Also I don’t think it’s a bandwidth issue since Speedtest shows her getting about 200 Mbps down and 200 Mbps up. I’m assuming it’s an issue with having such a large library. Is anyone else experiencing similar issues or have libraries this large or larger? Any thought on how to resolve this?