When navigating files through explorer with the preview pane enabled, each file takes ~2 seconds to load the preview pane. This only has been happening on Windows 10 machines. Under Windows 7, the preview pane loaded immediately (<.5 sec).
It's slowed down my workflow tremendously, as I rely on the preview pane to verify what document I'm renaming. If I'm looking for a specific one out of 10, I have to wait the 2 seconds between each one. Even clicking the down arrow a few times will only go to the next one and pause while it opens.