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by rubymamis 878 days ago
QML is very efficient. Much of custom QML code ones write actually compiles to C++[1]. All the code of Qt Quick components are written in C++ as well. I'm now creating a block editor in Qt C++ (model) and QML (view) that is 4x faster than that fastest comparable native app on macOS[2]. So, yes, it's possible to write very efficient code with QML.

[1] https://www.qt.io/blog/qml-type-compilation

[2] https://www.get-plume.com/