it not slower in browser, thought much faster, since native windows application when compiled, , not html5 app.
what missing?
it graphic intensive game, lots of re-flows , re-paints, shouldn't problem native .exe app.
try disabled disk caches see if helps speed...
"chromium-args": "--disable-gpu-shader-disk-cache --disk-cache-dir=w:/abc --media-cache-dir=w:/abc --disk-cache-size=1 --media-cache-size=1", take note node webkit "shell" passes script file chromium it's not native windows prog.
