update peak concurrent job interval

src/main/java/we/stats/FlowStat.java

@@ -350,7 +350,7 @@ public class FlowStat {
 					log.debug("PeakConcurrentJob done");
 				}
 				try {
-					Thread.sleep(100);
+					Thread.sleep(1);
 				} catch (Exception e) {
 					e.printStackTrace();
 				}