Iterate through column A and do until empty cell - google-apps-script

Question

My script is working but it times out. I am unsure as to what I can do to keep it from doing this.
function archived(e) {
var sheet = SpreadsheetApp.getActive().getSheetByName('IVA');
const targetSheet = e.source.getSheetByName('Archived Videos');
const numColumnsToMove = 20;
var sheetTo = SpreadsheetApp.getActive().getSheetByName('IVA');
var myValues = sheetTo.getRange('A:A').getValues();
var i;
for (i = 0; i < myValues.length; i++) {
if (myValues[i][0] === '')
return i + 1;
const rangeToMove = sheet.getRange(e.range.rowStart, 1, 1, numColumnsToMove);
const values = rangeToMove.getValues();
appendRowsV(targetSheet, values, 1);
sheet.deleteRows(e.range.rowStart, 1);
var lRow = sheet.getLastRow();
var lCol = sheet.getLastColumn(), range = sheet.getRange(lRow,1,1,lCol);
sheet.insertRowsAfter(lRow, 1);
range.copyTo(sheet.getRange(lRow+1, 1, 1, lCol), {contentsOnly:false});
}
}
As an FYI my sheet has 1500 rows and 15 columns. don't know if that is important or not.

Answer 1

Just in case. As far as I can tell from your code you're trying to append all data from the sheet 'IVA' at the bottom of the sheet 'Archived Videos'. It can be done this way:
function myFunction() {
var ss = SpreadsheetApp.getActiveSpreadsheet();
var src_range = ss.getSheetByName('IVA').getDataRange();
var dest_sheet = ss.getSheetByName('Archived Videos');
var last_row = dest_sheet.getLastRow() + 1;
var dest_range = dest_sheet.getRange('A' + last_row);
src_range.copyTo(dest_range);
}