I've just updated to High Sierra and immediately noticed that copying files from external storage devices is much slower than in previous versions. While searching the web for info about what might be causing this, I noticed that every site is slow to load. So, I'm a little worried that something went awry with the clean install.
I suspect that the OS may be trying to index the external drive; however, I don't know how to verify this and regardless, it has never been this slow in previous upgrades. Another idea is that copying files from an older file system to the new file system requires some sort of translation. Is that possible? Anyhow, it's torturing me right now. Project folders that used to take a few seconds to copy are now taking about 5 minutes. What could cause this and can I fix it?
Oh, and I've been watching the Activity Monitor and nothing stands out.