Duplicate track and rename sequentially

The following macro duplicates the track and renames it numerically. The way it’s written takes a long time to execute when doing several tracks. Is there a way to rewrite it so that it first duplicates the tracks (which is fast in ProTools) and then renames them? Maybe this would be faster?

Also, can we build in an if/then so that if I don’t happen to have a number after the first track, it would add a number to the track we are duplicating and then continue. Right now if my source track to duplicate is named “DX_M", then the macro fails. It has to be named “DX_M1" for the macro to work.

Let me know if this is doable. Thanks!
—-__________

//This script duplicates a selected track a given amount of times (defaulting to “1” duplicate) without the .dupXX suffix
//Note: This should be assigned to a keyboard shortcut or Stream Deck button.

function getAndIncrementLastNumber(str) {
    return str.replace(/\d+$/, function (s) {
        return ++s;
    });
}

function duplicateSelectedTrack() {
    sf.ui.proTools.trackDuplicateSelected({
        duplicateActivePlaylist: false,
        duplicateAlternatePlaylists: false,
        duplicateAutomation: false,
    });
}

function renameTrack() {
    sf.ui.proTools.selectedTrack.trackOpenRenameDialog();
}

function incrementTrackName() {
    //Get the current track name
    var sourceTrackName = sf.ui.proTools.selectedTrackNames[0];

    //Variable for new track name
    var newTrackName = getAndIncrementLastNumber(sourceTrackName);

    //Duplicate selected track
    duplicateSelectedTrack();

    //Rename track
    renameTrack();

    //Add the track name with incemented number
    sf.ui.proTools.windows.first.textFields.first.elementSetTextFieldWithAreaValue({ value: newTrackName });

    //Click OK in Track Rename window
    sf.ui.proTools.windows.first.buttons.whoseTitle.is('OK').first.elementClick();
}

function main() {
    //Make sure Pro Tools Main Window is active
    sf.ui.proTools.appActivateMainWindow();

    var defaultValue = 1;

    var numberOfDuplicates = prompt("How many duplicates do you want?", 1);

    if (numberOfDuplicates == "null" || numberOfDuplicates == null) {
        throw 0;
    }

    //Loop for entered number of duplicates
    for (var i = 0; i < Number(numberOfDuplicates); i++) {
        incrementTrackName();
    }
}

main();