change this (such as disabling, 0 seconds, or maybe running bigger
chunks, for like 4 seconds) you can do this, where 'n' is time in seconds.
-addPlugin('OpportunisticQM', array('secs_per_action', n));
+addPlugin('OpportunisticQM', array('secs_per_action' => n));
Add 'rel_to_pageload'=>false to the array if you want to run the queue
for a certain amount of seconds _despite_ maybe already having run that