App Script code is so slow [closed]

I have created a script for my sheet to do the following when a certain cell is edited:

• Get the timestamp

• Get the user E-mail

• Add the text "New" in another spreadsheet.

    function WhenEdit(e){  var currentDate = new Date();  var triggeringSheets = new Array ("sheet1", "sheet2","sheet3");    var triggeredSheet =  e.source.getActiveSheet().getName();  var col = e.range.getColumn(); // triggered col  var user = e.user.getEmail(); // who triggered the funcation  var triggeredRanage =  e.range.rowEnd - e.range.rowStart + 1;  var eventStart = e.range.rowStart + 1;  var row = eventStart; //value for row  var user = e.user.getEmail(); // who triggered the funcation  if (triggeringSheets.indexOf(triggeredSheet) != -1) {// check the triggered sheet nae    if(col === 7 && row >= 2) { //check the triggered col & row        var newArr =[];        var dateArr =[];        var userArr=[];        for(var i=0; i<triggeredRanage; i++){              newArr.push(["New"]);              dateArr.push([currentDate]);              userArr.push([user]);        }        e.source.getActiveSheet().getRange(eventStart,10,triggeredRanage,1).setValues(dateArr); // set time stamp        e.source.getActiveSheet().getRange(eventStart,9,triggeredRanage,1).setValues(userArr); // set user email        var anotherSheet = SpreadsheetApp.openById("Link");        var secodSheet= anotherSheet.getSheetByName(triggeredSheet);        secodSheet.getRange(eventStart,13, triggeredRanage, 1 ).setValues(newArr); // set new        return;    }

It's working but it takes forever to run!What can I change to make it run faster?