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.