> When the computer takes more than 0.1 second but less than 1 second to respond to your input, it feels like the computer is causing the result to appear.
> This means that during 1-second response times, users retain the feeling of being in control of the interaction even though they notice that it's a 2-way interaction (between them and the computer). By contrast, with 0.1 second response times, users simply feel like they're doing something themselves.
> For web usability, this means that new pages must display within 1 second for users to feel like they're navigating freely; any slower and they feel held back by the computer and don't click as readily.
Arguably for something like liking or boosting it's not the same as an automatic UI interaction (like opening a menu, which should be as close to instant as possible), you're communicating with your instance's server and in turn other people's servers, but more importantly with other humans, since you're requiring attention from the author and/or your followers by taking that action.
So not "clicking as readily" as they say may be a pro?