Time Machine running 5X faster than SuperDuper

[kennbrodhagen]

The entire backup has now finished and reports an overall transfer rate of 1.66 MB/s.
I did a test with an 11.45 GB file and copied it to the NAS through Finder and got an overall speed of 6.5 MB/s. I can also hear the NAS drives working a lot more when I do a finder copy than when SD is running.

I checked the log and it doesn't appear to have any errors or warnings. It seems to log during the inital start of the backup and at the end when it closes out but not during file copy process itself.

Is there a way to set the logging to a debug level?

Is it possible that SD moves the file pointer around in the sparse image file a lot as it copies each file, like to update an index or something?