On highlighted questions, usernames (the asker's name), and codeblocks on main, the background is very low-contrast. This is an issue on my laptop screen, which, if it's at the wrong angle, makes the highlight invisible. Is there some way to increase contrast?
I could just write that you shouldn't use the cheapest hardware you can find outside of spec. This won't help you though. But I don't think the site design will get optimized for your case either.
Alternatively, many browsers allow specifying custom style sheets. You might be able (through use of good CSS selectors) to limit this to SU, or at least SE. Here's how I tried to help one guy with a similar issue on Meta Programmers using this approach.