Thank you ! I'll try using this template for a prototype, I'll send it to you if you want :D
Viewing post in Basic TCG Figma Template comments
You can try to turn off all auto layout and resize everything by hand, after it just turn on auto layout.
But I don't recommend using small resolution because will make it not be very readable when printed. The size of the template should be something around 300dpi in the size of a standard card.
Also, another option is converting the image to SVG if possible.