You don't have to use Notepad. You can adjust it on a slider under the Background Editor, in the lower-right hand corner of the dialog box.
And no, those destroyers aren't more powerful than an Orion. Those look like Kievs, from here. Six main guns, plus smaller turrets, and 48 fighters (see the Tech Room on our site). The EAD Moscow is very similar to the Kiev (same design, I believe).