How to speed up WhatsApp transfer to iOS from Android?

15 GB of WhatsApp data, 500 photos, and the app list have been processing for 36 hours and are only 90% complete. It’s going through 59,900 WhatsApp items at a rate of about 2 items every 6 seconds. This is during the transfer from Android to iPhone using the Move to iOS app

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Original Title: Move To iOS from Android takes days