Hey, this is a known issue. Cmd+Option+S is being captured by workbench.action.toggleUnifiedSidebar.
I can see you already tried unbinding a few commands (composer.open, aichat.open, etc.), but you need to remove this one specifically:
- Open Keyboard Shortcuts (
Cmd+K, thenCmd+S) - Search for
Option+Cmd+S - Right-click the
workbench.action.toggleUnifiedSidebarrow and select Remove Keybinding
After that, Save All should work on that shortcut.
This same issue is described here: Cursor override `saveAll` Command with `workbench.action.toggleUnifiedSidebar`
About the slow startup and the keyboard not responding, can you share your Cursor version (Menu → About Cursor → Copy) and your macOS version? Without that, it’s hard to suggest anything.