We are experiencing extremely slow and sluggish performance in Nuke (7.0v10) when having a tk-nuke-writenode in the script. It does not matter if the write node is disabled, the slowdown still occur. As it is now, we have to work without write nodes, and add them just at the end when it's time to render. Rendering is also slowed down by this. It must be the python callbacks for path/proxy that gets called every frame. Any idea how to solve this?