I am making a memory game based om sms messages, where I recieve xml files from a server and more or less just show it in vvvv. the patch is however very heavy on the cpu and I can not really understand why, any ideas?
At my machine the framerate is low because of the GPU, not the CPU.
You should disable all your GDI Renderers when you don’t need them -> just enable them for a frame when the content changes. Switching off three of them (Metronom and Highscore Subpatches) makes it run at 60fps on my machine.
You should learn how to use spreads!! (just looking inside your SquarePix subpatch). In my experience, it is the more nodes, the more power consuming.
Also, like phL said, all those GDI renderers are killers. You know the Debug Mode? (CTRL + SHIFT + F9) Look for Nodes that have very high number compared with the rest, and see if you can change something.