Merging of the posting list can be very heavy. It looks like in the elastic/logs benchmark it is the most cpu heavy part of merging segments: <img width="1850" alt="Image" src="https://github.com/user-attachments/assets/9e059022-9b88-4ef5-8acc-d3902d7f7670" /> It looks like there is some heavy work being done on **a per term basis**. We should look into improving this.