Unity particle system feedback thread

I have a question :

I work on mobile games and our tech guy said that “Particle systems are very inefficient since unity needs to serialize every single field in the particle even if we are not using it”. So he asked me to avoid using particle system as much as I can.

I don’t know if this affects performance or not. If yes, there should be an option to discard unused modules (Like Unreal i guess).

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