[zavg]

Pavel Durov (founder of Telegram) totally nailed this concept.

He pays special attention to the speed of application. The Russian social network VK worked blazingly fast. The same is about Telegram.

I always noticed it but not many people verbalized it explicitly.

But I am pretty sure that people realize it subconsciously and it affects user behaviour metrics positively.

[dominicq]

Telegram is pretty slow, both the web interface and the Android app. For example, reactions to a message always take a long time to load (both when leaving one, and when looking at one). Just give me emoji, I don't need your animated emoji!

[hu3]

Can't agree.

These operations are near instant for me on telegram mobile and desktop.

It's the fastest IM app for me by a magnitude.