problem with displaying background image with UX map in a dashboard

Hi everyone,

Context : I've made a dashboard which filter different background image on a map. Then I click on XY point to order spare parts on drawingImages are screenshot from a same PDF, length and width of screenshots are more or less the same (half page) My problem : the zoom does not fit according the image.

the image below "SILENCIEUX", the zoom is at its minimum but too high for user experience.

According the image, the display is not the same. Sometimes zoom is okay, sometimes not.

If I change the size of the entries in the dashboard it does not fix the problem.

Is there a functionality to automatically fit the image ?

Thanks all for your help