back in 2002 I went around bumping everyone's screen resolution from vga in college because it hurt my sole. at least 20% of people got pissed at me for "fucking up their settings". Almost all eventually came back and said "I can't read my whole doc, show me that thing again."
Point being they didn't even know it was broke or that they could change it. Thus you have iOS where apple's defaults are the whole OS and literally millions upon millions of people are completely happy with it.
(disabling "enhanced pointer precision" is preferable, but optional)
If your cursor is too fast you need a mouse with a lower DPI, and vice versa.
I can only guess how many proprietary extensions have been built to rely on the old Control Panel interfaces, and how few of them will ever be updated to Windows 10.
Apparently Misrosoft has said that they do want to drop the old-style control panel eventually. I realise it's a huge job, but it feels very like a half-finished feature right now.