[CentOS] Crontab problem

Tue Oct 5 09:09:12 UTC 2010
John Doe <jdmls at yahoo.com>

From: Jennifer Botten <jennifer at etech.co.za>
>I seem to have a problem with crontab. I am running CentOS 5.5. If I add my 
>bakup scripts into crontab they take very long to run. If I run my scripts 
>manually they run 100%. I have also tried vixiecron, same issue. Any ideas?

Did you check if they both have the same nice level when they run?
is anything else running at the time of the cron?