Ok, I am gonna move this to the help section, as performance problems are not bugs per se. You can open a Feature Request asking to improve the performance on large canvas.
Two things I noticed in your screen recording.
- you keep multiple long notes completely unrolled in view. That’s really taxing.
- It doesn’t look like you you using the “Zoom threshold for hiding card content” optimization at all.
We are aware that there is a bug when panning in and out in a region where there is a large number of nodes and that is going to be addressed.