I do not know if this issue is caused by DF.

I am uploading pictures to Flickr. I've uploaded over 4000 in the last year. I sort the upload file listing Window in reverse chronological order, so that the most recent photo I've scanned is at the top of the file listing.

Windows (and/or Flickr) remembers the file sort order from the previous session.

For the last 4000 photos, when I open that upload window, it takes Windows about .25 second to go from some listing other than reverse chrono to reverse chrono. (The change in order happens without any key presses by me.)

I installed DF last night, and now it takes about 8 seconds for the Window file listing to change from the default to the reverse chrono order.

Is it possible DF caused this? Any way to fix it?