Performance

[cBournhonesque]

Few performance ideas:

• I spawn a lot of systems (usually one or more per component); this can have an adverse effect on the scheduler (although I think bevy is trying to optimize the scheduler to be able to handle more systems)
• I think parallelization could be increased in a lot of places: optimize access by using fewer ResMut or splitting up resources, using par_iter instead of iter
• I want to avoid having any allocation on the hot path (receiving and deserializing packets). Ideally I would just be able to deserialize the packets into pre-allocated buffers with zero-copy, but it is far from the case right now. I think in some cases the deserializing does multiple copies, even...

[cBournhonesque]

0.13.0 benchmark

0.14.0 benchmark