Map Resizing Help

Hello,  Since the pandemic, I've been trying to run a campaign using Roll20. My first session went well but when trying to prepare for the second session, I've run into an issue with battlemaps. When I put a battlemap on the grid, it resizes the map to a 2x3 bock. Dragging the map to resize it kills the quality but I have no idea what I'm to do. Any help will be greatly appreciated, thank you.

Greggs, Some possibly helpful information: When you drop an image on the tabletop to be a map, be sure you're in the correct (Map/Background) layer. Placing it on the Token layer will wreak havoc Change the image to a "Drawing" using the control-click menu this makes it easier to resize and move around   I highly suggest going on Youtube and searching for "roll20 map tutorial" and have a look at them. You'll find a ton of information that way. Good luck! M