Hi Jock1e Yes, it is slow at times. I do have an external drive and have shifted most of my music files, photos and documents on to it - in fact nearly everything, leaving a few bare bones, so to speak. This is why I cannot understand why I'm not gaining much in the way of space on the C drive. It doesn't make sense to me, but then I'm not a techie at all.
OnePlus 5 review