latest NWJS version 73 is still performing terribly on Deck/Linux.
I get 20 FPS on it.
Compared to 60 FPS with 71.
Interestingly, in 73, despite running so awfully, when using the Deck's own FPS overlay, it reports that it's "60", and the GPU/CPU are both low values too.
Which seems to indicate that in this version of NWJS, something is artificially slowing or limiting the FPS cap?