Consistently high CPU usage on a new BiRP project while idling when the Editor is focused

Thank you for reporting a bug to Unity. We have reviewed the issue carefully, and in this case, the team is unable to prioritize fixing this bug. There are a number of reasons we make this decision, including the impact and severity of the issue across our user and customer base, and the possibility that future plans may solve the problem in a different way, or that a workaround for the bug may be available. Today we will be closing this case. Thank you again for taking the time to report this issue, and please let us know if there is anything else that changes the impact or severity of this issue. (We were able to improve performance in this area based on this bug, but there are still some issues in here. However, while we will be continuing to optimize based on CPU usage of empty projects I'm closing this bug because the data is based on the built-in render pipeline. We would like to prioritize optimizations based on the universal render pipeline at this point. Thanks again for raising the bug!)

Unity 6000.2 has reached its end of life and will not receive further updates. If you need additional fixes, please upgrade to a newer Unity version.

Cancelling: the 6000.1 version has reached its end of life. If you need additional fixes, please upgrade to a newer Unity version.