Users have zero patience for slow checkouts. If your app forces repetitive...

https://www.scribd.com/document/1051753410/Why-Milestone-Rewards-Actually-Work-And-Why-Most-Apps-Fail-Them-233966

Users have zero patience for slow checkouts. If your app forces repetitive logins or manual payment entry, customers will simply leave. One-click ordering and real-time order tracking are now the bare minimum, not a luxury