Howdy stefan,
Just a few question about the JVM Runtime.UsedMemory, which agent is this from and with the JDBC connnection pools, guessing this is for an application server.
If you right click on the graph within the dashboard editor, then select "Data Option" there are a few settings for Scale that might be able to help you. If not, then if you control the metric through a java calculator or published through an end user provided script (java/perl) then you might have a chance to change it by changing the value before it is published to the APM.
Like wise, you might be able to build a calculator to multiply/divide the native value into a new value then reassign the graph to your new value.
If the scale option or the take it over suggestions aren't want you are looking for, then on the community page, there is a dropdown with a pencil icon next to the search box that lists the "Idea" link.
- Idea Create an idea for others to see and vote on
Hope this helps,
Billy