Performance improvements

[defunctzombie]

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[defunctzombie]

Another thing I noticed is that we should drop the { id, ...msg } altogether. We know the fields of the container and the payload should be separate and we don't need to spread it. These are small things in the scheme of things but its also equally easy to read and write the code doing it the way that does less work. If there was a benefit to the more work approach then sure - but in the current approach it is strictly more work for no reason.

[defunctzombie]

GoogleChromeLabs#654