Featured contend block research exclude posts benchmark

[iruzevic]

Describe your feature request

posts_not_in can be a bottle neck, we need to think about better solution for this.

Describe the solution you'd like

Create a benchmark and see if this is a problem on large scale posts.

Screenshots, screen recording, code snippet

No response

Environment info

No response

Please confirm that you have searched existing issues in this repo.

Yes

Please confirm that you have searched in our documentation and couldn't find the answer.

Yes