### Problem to solve The Throughput chart on the MR Analytics page loads slowly. @ahegyi pointed out in https://gitlab.com/gitlab-org/gitlab/-/issues/243709#note_439684522 that we could speed up the default page load by only querying `merge_request_metrics` and skipping querying `merge_requests`. ### Proposal Adjust the Throughput chart query so it queries only `merge_request_metrics` if there are no extra filter params present.