Do you have processes that actively write to files in your Dropbox folder on a regular basis? Dropbox averages < 0.5% CPU on my Mac, but your mileage may vary.

Do you have processes that actively write to files in your Dropbox folder on a regular basis? Dropbox averages < 0.5% CPU on my Mac, but your mileage may vary. I do consider even that much somewhat odd considering that I'm a very occasional user.