It was slow then. It's not now, not on even a decade-old PC.
But TBH, the text mode just works, and you can readily tweak DOS on a modern SVGA screen to display 132*50 text or something like that.
I know I'm a heretic for saying it, but I still like MS Word for DOS. It even shows me bold, underline and italics right there on the text screen, rather than making me guess colours like WordPerfect always did.
This tweet shows what I mean elegantly: https://twitter.com/taviso/status/1303841149421891584