Honestly curious, but of all the things I've heard people say about QT it could never be about poor performance, it's generally consistently regarded as the fastest complete GUI toolkit out. Even more so because the Linux desktop environment KDE is built in it and is consistently shown to be both the fastest and lowest memory of near all Linux desktop environments (and certainly among all the big ones), including ones designed to be fast and low memory. Where did this poor performance thing come from and am I missing something lately?
This is the first time I hear this compliment about KDE: being high performance and low memory usage. It's the exact opposite in my experience. The worst performance and most resource hungry desktop environment.
Though to be honest it's been more than 5 years since I tried, so things might have changed since then ... but I really doubt it.
