Liftoff is still substantially slower at initial compilation than Firefox. Are there any plans to close the gap? A Unity exported game takes over 40 seconds for a new model low end Chromebook to compile. The upcoming 3 fold decrease will be nice, but FF could do it in 2 seconds on the same hardware.
We still have a bottleneck at instantation time where we compile many JS<->WASM wrappers. We are working on parallelizing this compilation as well, so we'll get another bump out of that.
https://lukewagner.github.io/test-tanks-compile-time/
FF 61: 78.4 MB/s
Chrome Canary: 9.7 MB/s
Chrome 67: 3.3 MB/s