I need to set up scenes directly in the VSE as a scene Strip. It is possible to visualise the ideas created with Grease Pencil and simple animations of 3-4 planes.That gives me 1 or 2 Fps in the the backdrop of the VSE.
The planes are white. That's it, nothing fancy but the memory go near 700 mb usage.
For one scene strip that shows scene 1 with 3 planes, 30 seconds long and the quadcore Cpu is at 100 % fullpower, blender is nearly a colapsing and ultra slow.
How can I use the scene strips of blender VSE and what is happening in Blender that makes it so laggy?