The current mouse and keyboard interactions with the editor are VERY clunky. Holding down space to move across the board and ctrl to zoom isn’t good UX. Here’s a better suggestion:
Middle mouse button: move around the board (viewport)
Mouse wheel: scroll vertically
Ctrl + mouse wheel: zoom
Right click: contextual menu
Left click: Select
As mentioned by other poster: the zoom integers are too dramatic. Look at Figma for inspiration, they have nailed it.