Code Review Usage Limit Issue

I had been enjoying Codex with Code Review very much, however recently it seems like I almost immediately hit the Code Review usage limit while Codex usage itself has 90%+ usage remaining. Most recently I am unable to use Code Review for about a week, since I hit the limit within two coffees, seemingly within a couple hours.

I am wondering how you guys are managing this, and whether it is expected behavior.

Thank you