Just wanted to note that you won't see much difference with 5 rows. Anything will run fast with 5 rows. That's why performance tests usually start at least with 1000 rows and go on for several millions depending on the expected workload.
Luis C.
General Disclaimer:
Are you seriously taking the advice and code from someone from the internet without testing it? Do you at least understand it? Or can it easily kill your server?
How to post data/code on a forum to get the best help: Option 1 / Option 2