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

https://bizzmarkblog.com/why-do-i-keep-getting-pulled-back-in-by-live-features/

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.