(Ustr, micro string API)
(and-httpd - simple, fast and secure)
(String library comparison)
Kind of, if you are talking about a complete operation that you run "often" then absolutely (and if you run it very often, then even 4 seconds might be "too long"). However at the other end of the spectrum if it's one of many operations, and the others take 10-30 seconds combined and the user only runs this type of thing "rarely" then I'd have to disagree very strongly.
But let me just argue this way instead, do you have a usecase where you think the performance of yum matters from a UI point of view. You don't even need a comparison to apt/zypper/whatever, just a case where you think it's so slow it's hindering the UI. I'm not saying we can 100% "fix" it, but we'll certainly look at it.