KDE 1.0 was release in 1998, almost two decades ago. Even a decade old machine low-end machine is scifi-high-end by 1998 standards.
That being said, it may be impractical to browse the modern web with KHTML 1.0 (from which webkit was forked by Apple, hence it being a remote ancestor also for current Safari and Chrome!).
Guys, is FAST as hell, and the screenshot was taken from inside KDE 1 using a PLasma 5 application, so in general sparse term, is usable. I will make it totally usable in next weeks tough, as i didn't have time to port 100 %.
That being said, it may be impractical to browse the modern web with KHTML 1.0 (from which webkit was forked by Apple, hence it being a remote ancestor also for current Safari and Chrome!).