A. 1. Clear the app cache: Go to your iPhone's Settings > General > iPhone Storage. Find Y-Disk and tap on it. If there's an option to 'Offload App', do that to clear cache without losing data. Reinstall the app afterward to ensure a fresh start.
B. 2. Restart your iPhone: Sometimes, a simple restart can help improve app performance. Hold down the power button and slide to power off. Wait a few seconds, then turn it back on.