Try switching to advance, it should be faster.
If you're not moving the items too much then it's enough to set the "interactive" property of the view to false. If you are moving items but you don't care about collisions, disable indexing for the scene.Could I disable collision detection?
Callgrind (part of Valgrind package) or gprof if you're running a supported platform. I don't profile on Windows so I can't recommend anything there.What profilers do you recommend?
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