QueueStatisticsCollector sometimes takes up to 15 seconds for a single request

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queueStatisticsCollector.getQueueStatistics() feels "a bit" slow. Cited from log:

2024-06-17T08:48:14,675 int houston DEBUG QueueStatsService - queueStatisticsCollector.getQueueStatistics() took 3255ms
2024-06-17T08:49:49,592 int houston DEBUG QueueStatsService - queueStatisticsCollector.getQueueStatistics() took 3526ms
2024-06-17T08:55:24,828 int houston DEBUG QueueStatsService - queueStatisticsCollector.getQueueStatistics() took 3594ms
2024-06-17T08:55:33,236 int houston DEBUG QueueStatsService - queueStatisticsCollector.getQueueStatistics() took 3376ms
2024-06-17T09:16:35,764 int houston DEBUG QueueStatsService - queueStatisticsCollector.getQueueStatistics() took 1528ms
2024-06-17T09:20:06,034 int houston DEBUG QueueStatsService - queueStatisticsCollector.getQueueStatistics() took 1784ms
2024-06-17T09:20:48,483 int houston DEBUG QueueStatsService - queueStatisticsCollector.getQueueStatistics() took 2311ms
2024-06-17T09:36:53,586 int houston DEBUG QueueStatsService - queueStatisticsCollector.getQueueStatistics() took 1378ms
2024-06-17T09:48:05,475 int houston DEBUG QueueStatsService - queueStatisticsCollector.getQueueStatistics() took 1304ms
2024-06-17T09:57:53,281 int houston DEBUG QueueStatsService - queueStatisticsCollector.getQueueStatistics() took 1037ms

Here a bunch of even more concerning ones:

2024-06-14T15:35:45,529 int houston DEBUG QueueStatsService - queueStatisticsCollector.getQueueStatistics() took 11177ms
2024-06-14T15:40:42,929 int houston DEBUG QueueStatsService - queueStatisticsCollector.getQueueStatistics() took 14714ms
2024-06-14T15:41:25,240 int houston DEBUG QueueStatsService - queueStatisticsCollector.getQueueStatistics() took 14880ms
2024-06-14T15:42:04,967 int houston DEBUG QueueStatsService - queueStatisticsCollector.getQueueStatistics() took 12507ms

More similar logs attached.