I'd be willing to wager the X Factor is graphics card configuration and a card optimized for high performance 3D rendering (including having the drivers installed properly to leverage those features).
There's a bit of a correlation between Firefox users and users who are mostly content that their hardware supports explicitly a 2D desktop GUI and is not optimized for anything fancier. But nowadays, the browser itself is a 3D application because the 3D compositing pipeline is also the high performance 2D compositing pipeline.
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I'd be willing to wager the X Factor is graphics card configuration and a card optimized for high performance 3D rendering (including having the drivers installed properly to leverage those features).
There's a bit of a correlation between Firefox users and users who are mostly content that their hardware supports explicitly a 2D desktop GUI and is not optimized for anything fancier. But nowadays, the browser itself is a 3D application because the 3D compositing pipeline is also the high performance 2D compositing pipeline.
Dunno, I use FF on all my PCs with a variety of configurations and do not experience the GitHub slowdown referenced earlier.