Key Drivers widget customization for font size?

Hello, I have added a Key Drivers widget in my CX Dashboard but the font size is rather small and it makes the statement hard to read. I haven't found an option to change the font size in Edit - does it exist? How can I increase my font size? Also, I deactivated the "Scale Data Points by Sample Size" option but now all my bubbles are quite small. How can I increase their size as well (uniformly)? Thanks for the help! Example below (font is too small, bubbles are too small): !