Does RunService cause performence issues if you use them to much in the same game?
What if mutiple players join at the same time would it break the RunService?
No. There is only one of each event. If you two separate scripts that both bind functions to, say, the Heartbeat event, it will be the same event that is firing and it would call both functions.
Clients get their own instance of RunService, so a local script using it for one player wouldn’t affect the other players or the server.
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