Since a week or so everything I ask codex to do, no matter how small, uses at least 1% of my weekly limits and like 5% of my 5h limit. It's getting so bad I'm thinking of just canceling my OpenAI subscription, because this has no use anymore.
I get the same. It sits there and spins for a bit then as soon as it spits out something, my 5h is 5-10% lower, whether it's asking it to do code review over a significant code base or just asking it to change a config value.
Check which model you're using, Astra is the new default, but also the most expensive