Is there a reason to use Mapbox?
You can use default Map Type by Qlik Sense..
It would be helpful if you provide the link to your Mapbox map (if you can) or is it the default Mapbox links you using for your map?
Is it from any of the links below provided by Sense?
And as Lakshmikandh said, you should not have a zoom issue as it will automatically adjust. Share the QVF if you can?