Users now expect instant gratification. If your app fails on fast loading or...

https://wiki-zine.win/index.php/The_Friction_of_Waiting:_Why_Delayed_Withdrawals_Are_Killing_Your_Platform

Users now expect instant gratification. If your app fails on fast loading or makes mobile payments a headache, they bounce instantly. True personalization is the baseline for any modern experience. If you force users to wait, you have already lost them.