Did you install the Pro? It should have been the 4.0.9 (at least it was yesterday when I tried).

btw--a few more ideas.

perhaps cleaning out the incomplete folder can help if there are too many old ones hogging the background processes.

Also, (and I hate to suggest this), sharing fewer files will be speedier.

Large new files take a loooong time to hash in Classic: is this what is taking so much time?