Question Regarding Lagg

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So, I have around 50+ players on a server each day. Every one of them are sending alot of 'triggerservers()' nearly every second. would it be better if i did something like this serverside

function onCreated() {
  for (temp.i: allplayers) i.performFunctionNeeded();
  scheduleevent(15, "Created", "");
}

instead of each player doing it every second? the function being called will just set a flag, nothing big/bad etc... what would you say? keep the client to server or just make it all server based? i am thinking server...