I think Windows 9x was peak Windows. Everything is clear, you know what's a button and what's not. Information density is also high, which is a good thing on a computer screen. But the main thing is that Windows 9x felt responsive . The Windows widgets felt solid and performant, while "modern" UWP apps feel clunky and prone to breakage. And don't even get me started on Electron. Edit. See OP's previous article here,…
Spinning rust hard drives were slow. It took ages to launch a program - loading screens typically had time to display a progress bar and a series of notes about what they were up to - ‘loading extensions’, ‘reticulating splines’, etc. Word would stall whenever it was autosaving. Carrying out an operation like spell checking or doing a find across a whole document or getting a word count took time.
Remember windows used to have an hourglass cursor? You used to have to watch that thing flip and empty multiple times when doing things like emptying the recycle bin.
Windows 9x was typically not running on a permanently networked computer. The computer wasn’t running a bunch of background network tasks like checking for updates or polling your email - generally it was just being slow because it could barely cope with running more than one program at once.