making it so mouse wheel zoom on world map will zoom closer

Hi all , I have a large world map with mouse wheel axis zoom . It will only zoom in so far and then stop. but it is a large world , so I am still pretty far above when it stops. Is there a way to increase the zoom so it will go closer ? Or is this to do with map size? Basically it is switching to top view and taking a high res screenshot. thanx for any help

Are you using a plugin or marketplace asset to achieve this?

using quest map from marketplace. got it figured , had to change some float values. thanx