It's weird that when using something like Windows, KDE, or Gnome, I notice a delay between clicking and the thing happening on screen. It's maybe 100ms or so, but after using XFCE for years, there's a notable and, for me, infuriating delay in many modern GUIs.
And it's not my computer; I'm sitting here with 32 cores, 128GiB of RAM, and a somewhat fancy AMD video card.
Anyway, I LOVE XFCE. I don't need a lot of bells and whistles in my DE, I just need it to launch applications, bind some hotkeys, and otherwise stay out of my way.