diff --git a/core/src/main/groovy/com/muwire/core/files/PersisterService.groovy b/core/src/main/groovy/com/muwire/core/files/PersisterService.groovy
index 16911ee5..2a947930 100644
--- a/core/src/main/groovy/com/muwire/core/files/PersisterService.groovy
+++ b/core/src/main/groovy/com/muwire/core/files/PersisterService.groovy
@@ -61,7 +61,7 @@ class PersisterService extends Service {
                             listener.publish event
                             loaded++
                             if (loaded % 10 == 0)
-                                Thread.sleep(10)
+                                Thread.sleep(20)
                         }
                     }
                 }