Review ThreescaleContainerCPUThrottlingHigh rule for backend-cron

After installed 3scale, backend-cron pod almost always continues to be at Pending state of ThreescaleContainerCPUThrottlingHigh rule.
Other pods are always under the threshold.
If backend-cron is overloaded even slightly, it is assumed that the rule will be easily fired. Please review whether the rule is appropriate for backend-cron.