Every major release, I do a complete re-install (put the installer on an USB stick, perform backup and do a clean install), just to get a "clean sheet" and get rid of stuff I haven't touched in ages. Navigating in the Finder is slow. Very slow. I haven't experiencing any bugs or odd behaviour, but compared to Mavericks the experience is terrible. Opening tabs, switching between tabs, opening folders, new windows - this is notably slower than in Mavericks. I am using the keyboard a lot and it's probably due to this it's easy to spot the difference. Safari is in general more responsive when you "compare" it in the context of clicking links, opening tabs and switching tabs. Other file browser applications do not show the same slow behaviour. Anyone else finding the slowness annoying?