As you can see those letters could be “thicker” not bigger
Maybe use a V bit and change the depth for the text? Separate the “symbols” from the text and make 2 files with different bits. Let us know if this works out for you.
You can get .5 mm width taper or v bits for very inexpensive. I have even seen 10 degree tapers on these inexpensive V bit. It used to be free. Just make sure to set to cut on shape path. I have had no luck but I hear that the Scan to Cad program can do it.
use 2 files?
I like the idea of the 2 files.