Hello everyone, I’m a small/private developer working on MacPad Mobile, a native plain-text editor for iPhone and iPad. It edits files directly through Apple’s Files interface and requires no account or sign-in. I’m looking for a small number of TestFlight volunteers to help investigate an occasional performance issue. On some devices, the first folder transitions and the first opening of an iCloud Drive file can be noticeably slower than subsequent attempts. If you have approximately 5–10 minutes, I would particularly appreciate results from older iPhones, recent iPhones, and iPads. Suggested test: Leave the app unused for a while before beginning. Open a disposable plain-text file from iCloud Drive. Note whether navigating the first few folders feels slow. Note the delay between selecting the file and seeing its text. Repeat the same route and report whether it becomes faster. If possible, compare it with a file stored under “On My iPhone” or “On My iPad.” Please use disposable test files and avoid including private filenames, document contents, account details, or personal folder information in screenshots or feedback. Feedback can be submitted directly through TestFlight. Including the device model, iOS/iPadOS version, storage location, and whether the first and repeat attempts differed would be especially helpful. TestFlight link: https://testflight.apple.com/join/GhDzjNmj I know many people here have considerably more experience with Apple-platform development, so I’m also grateful for any advice about measuring Files-provider and iCloud latency correctly. I'm not very sure to do that everything correct. Thank you for your time and for any help you’re willing to provide. Best regards Frank