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Variable Replication vs Multicast Function Question

My character class has several variables that control the animation bp state machine. These are already set to be replicated.

When the player fires a weapon, I execute a function on the server, which affects these variables.

Should I explicitly execute a multicast function to update all of the other clients, or is it just as good to let the built-in variable replication?

(clearly want the animation to start as soon as possible on all clients - just wondering if an explicit multicast function call would be any faster than just using standard variable replication)

Thanks for any feedback/advice

replicated variables replicate by themself if their value “SET” on the server.
you can use rep notify to detect and filter the changes.