Memory usage optimization for Canvas

ADDITIONAL SYSTEM INFORMATION :
All OS

A DESCRIPTION OF THE PROBLEM :
In my application I use intensive Canvas to draw diagrams. The diagrams are showing in a TabbPane, so multiple diagrams can be open at one time. When the user is using a high resolution monitor, with few open canvases, this may lead to video memory exceptions. I tried configuring more memory, but this may not be always enough.
Is it possible to add a property in the canvas, (can be the disable property) which will release the video memory when is set? I can then set this if a tabPane is inactive.