Content SVGs unreadably small in converted book

[Mikemk]

I have this textbook which I was only able to find digitally on the manufacturer's website places, and I'm trying to convert it to an azw3 format for reading on my kindle by downloading each section using inspect element (directly downloading just gives encrypted gibberish), creating an epub from the filesystem, and converting to AZW3 in Calibre. The AZW3 looks fine in Calibre, but the SVG Math formulas are very tiny on the kindle itself. See postimg.cc/4ng2nPSg for a side by side.

Also, some of the text is colored, and Calibre's remove CSS color option didn't work. Looking through the source, there's several spots where it sets the color in the SVG. Can calibre automatically remove these?