Pro plan 5-hour usage limit depleted in ~20 minutes under light Codex workload

Question

### What version of Codex CLI is running?

0.125.0

### What subscription do you have?

Pro $200

### Which model were you using?

gpt-5.5 high fast

### What platform is your computer?

Darwin 25.3.0 arm64 arm

### What terminal emulator and version are you using (if applicable)?

Warp

### What issue are you seeing?

My 5-hour usage limit was consumed extremely quickly: it went from 0% to 100% in about 20 minutes, even though I was only running a light workload.

It feels like  I were on a Plu