High CPU usage, help

 45.9% (229.2ms out of 500ms) cpu usage by thread 'elasticsearch[node-109][search][T#30]'
     10/10 snapshots sharing following 15 elements
       org.apache.lucene.search.Weight$DefaultBulkScorer.score(Weight.java:163)
       org.apache.lucene.search.BulkScorer.score(BulkScorer.java:35)
       org.apache.lucene.search.IndexSearcher.search(IndexSearcher.java:621)
       org.elasticsearch.search.internal.ContextIndexSearcher.search(ContextIndexSearcher.java:191)
       org.apache.lucene.search.IndexSearcher.search(IndexSearcher.java:309)
       org.elasticsearch.search.query.QueryPhase.execute(QueryPhase.java:117)
       org.elasticsearch.search.SearchService.loadOrExecuteQueryPhase(SearchService.java:286)
       org.elasticsearch.search.SearchService.executeQueryPhase(SearchService.java:297)
       org.elasticsearch.search.action.SearchServiceTransportAction$SearchQueryTransportHandler.messageReceived(SearchServiceTransportAction.java:776)
       org.elasticsearch.search.action.SearchServiceTransportAction$SearchQueryTransportHandler.messageReceived(SearchServiceTransportAction.java:767)
       org.elasticsearch.transport.netty.MessageChannelHandler$RequestHandler.doRun(MessageChannelHandler.java:277)
       org.elasticsearch.common.util.concurrent.AbstractRunnable.run(AbstractRunnable.java:36)
       java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
       java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
       java.lang.Thread.run(Thread.java:745)

CPU usage up to 1000%, how to calm down it without restarting elastic?