Control the IntensiveWakeUpThrottling feature.

When enabled the IntensiveWakeUpThrottling feature causes JavaScript timers in background tabs to be aggressively throttled and coalesced, running no more than once per minute after a page has been backgrounded for 5 minutes or more.

This is a web standards compliant feature, but it may break functionality
on some websites by causing certain actions to be delayed by up to a
minute. However, it results in significant CPU and battery savings when
enabled. See https://bit.ly/30b1XR4 for more details.

If this policy is set to enabled then the feature will be force enabled, and
users will not be able to override this.

If this policy is set to disabled then the feature will be force disabled, and
users will not be able to override this.

If this policy is left unset then the feature will be controlled by its
own internal logic, which can be manually configured by users.

Note that the policy is applied per renderer process, with the most recent
value of the policy setting in force when a renderer process starts. A full
restart is required to ensure that all loaded tabs receive a consistent
policy setting. It is harmless for processes to be running with different
values of this policy.