Show number of queries and page load time and memory

[galerio]

I know that by enabling the debug mode I can see in the footer the number of queries, the page load time and the memory used, but it also shows many others information that I don't want to show.

I would like only to see something like this:

* Page Generation 0.26532 seconds
* Memory Usage 8,080KB
* Queries Executed 40

Ad maybe also some other little info, like % of PHP and % of SQL, Server load, etc.
How can I do it?

Thanks