Nice work man... going by the screenshots it seems like you had this running on UniProcessor Environment and with 1 GB RAM.
couple of questions - Any chance you have metrics on a better server? and secondly, was there anything else running on this box when you took either of the backups?
I am concerned about the spike in CPU load during the compressed backups. Seems to put quite a lot of load the box. Wondering if there are any settings to limit the compression algorithm to minimal/medium/full... etc..