The secret in my experience is parallelization - Cursor might be faster or have better ergo for a single task, but Claude Code really shines when you have 6 tasks that are fairly independent.
If you treat CC as just another terminal tool and heavily use git worktrees, the overall productivity shoots through the window. I've been using a tool called Ouijit[1] for this (disclosure: the dev is an old colleague of mine), and I genuinely do not think I could go back to using Cursor or any other traditional IDE+agent. I barely even open the code in an editor anymore, primarily interacting through the term with Vim when I need to pull the wires out.