High Battery Drain in Cursor AI: It was the Import Cost Extension

Out of curiosity I’m testing Cursor AI ( and I’m actually enjoying it more that I should ), but I quickly noticed my laptop’s battery draining at an alarming rate – faster than playing Factorio. After investigation, the root cause was clear: the Import Cost VS Code extension was triggering excessive CPU usage through repeated recalculations (for no reason?!).

Edit: No reason might seem excessive. It’s a TypeScript project and I was working on components that got imported everywhere so I might understand why the sizes needed to be updated, but it’s not a BIG project, it still doesn’t make sense to eat all the CPU.

Resolution

1. Navigate to Cursor’s extension management interface
2. Locate and disable (I also uninstalled) the “Import Cost” extension
3. Restart Cursor

For verification, monitor CPU usage through Activity Monitor before and after implementing the fix. Command cursor --status might also help but I discovered it way too late.

Reference: Cursor Issue #1703

Note: This issue affected Cursor versions prior to potential patches. Check the GitHub issue for the latest status.