PCs are never fast enough. Well, in the first two hours after you start one for the very first time, yeah. But after about six months of updates, no. I had read once that Apple had (has?) a habit of deliberately slowing down its PCs just before a new operating system was released, so that the new system would feel faster. I think Windows has known that trick for years.
And when you go to use someone elses PC, you find that they are configured inexplicably -- All I want is WORD, dammit, where is it? - and they have weird applications with non-intuitive names. Spotify is MUSIC????