STA-65036762 mail2Sheets script

// EXECUTION is running forever:  https://i.stack.imgur.com/yZjMw.png
// Execution time (1.749 s) is without the "refreshThreads" command
// FROM: https://stackoverflow.com/questions/65036762/script-to-search-for-multiple-unread-labels-in-gmail-threads-at-once?noredirect=1#comment114980378_65036762
// As from: https://stackoverflow.com/questions/63907655/record-incoming-gmail-messages-in-google-sheets
// AND as from: https://stackoverflow.com/questions/63990923/data-is-not-written-to-google-spreadsheet

function mail2Sheets() {
  var ss = SpreadsheetApp.getActive();
  var sheet = ss.getSheetByName('newRec'); //gets the right sheet
  var freshLabel = GmailApp.getUserLabelByName("00-fresh"); // ++++ will add this label in the end
  const query = "label:unread (label:00-atest OR label:00-btest)";
  var foundThreads = GmailApp.search(query);
  var newReceipts = [];
  for (var i = 0; i < foundThreads.length; i++) {
    var messages = foundThreads[i].getMessages();
    for (var m = 0; m < messages.length; m++) {
      var from = messages[m].getFrom(); //from field
      var to = messages[m].getTo(); //to field
      var time = messages[m].getDate(); //date field
      var subject = messages[m].getSubject(); //subject field
      var body = messages[m].getPlainBody(); //body field
      var mId = messages[m].getId(); //id field to create the link later
      newReceipts.push([from,to,time,subject,body,'https://mail.google.com/mail/u/0/#inbox/'+mId]);
    }
  }
  if(!foundThreads.length) return; //  if there are no unread ones, do nothing.
  sheet.getRange(SpreadsheetApp.getActiveSheet().getLastRow()+1,2,newReceipts.length,newReceipts[0].length).setValues(newReceipts); //writes to the spreadsheet
  GmailApp.markThreadsRead(foundThreads); // marks as read
  freshLabel.addToThreads(foundThreads); // ++++ add label "fresh" to found threads
  GmailApp.refreshThreads(foundThreads); // PROBLEM HERE
  sheet.sort(4,false);
}