For some, it is that Bitcoin will continue to function as a payment network for individual users rather than a settlement network where only large transactions can be processed cost-efficiently.
I would like to know why that is perceived to be an issue (especially in China when you have payment networks that work instantly with almost no fees already)?
(such as Alipay, QQ, etc.)
And Wechat payment, geez, these days people just throw red envelopes back and forth as a way of messaging, try to beat that tps.

Albeit tencent can't even achieve internal database consistency IIRC.