diff --git a/defaults/yacy.init b/defaults/yacy.init
index ce109aab7..f3c75cfee 100644
--- a/defaults/yacy.init
+++ b/defaults/yacy.init
@@ -632,11 +632,11 @@ collection=user
 720_ccimport_idlesleep=100
 720_ccimport_busysleep=1000
 720_ccimport_memprereq=1048576
-720_ccimport_loadprereq=9.0
+720_ccimport_loadprereq=8.0
 730_ccfilter_idlesleep=100
 730_ccfilter_busysleep=1000
 730_ccfilter_memprereq=1048576
-730_ccfilter_loadprereq=9.0
+730_ccfilter_loadprereq=8.0
 80_searchresult_idlesleep=10000
 80_searchresult_busysleep=200
 80_searchresult_memprereq=0
@@ -644,7 +644,7 @@ collection=user
 90_cleanup_idlesleep=300000
 90_cleanup_busysleep=300000
 90_cleanup_memprereq=0
-90_cleanup_loadprereq=3.0
+90_cleanup_loadprereq=16.0
 
 # additional attributes:
 # performanceIO is a percent-value. a value of 10 means, that 10% of the busysleep time
diff --git a/source/net/yacy/search/Switchboard.java b/source/net/yacy/search/Switchboard.java
index 09a6abb30..3f4c57686 100644
--- a/source/net/yacy/search/Switchboard.java
+++ b/source/net/yacy/search/Switchboard.java
@@ -2309,7 +2309,7 @@ public final class Switchboard extends serverSwitch {
             Fulltext fulltext = index.fulltext();
             CollectionConfiguration collection1Configuration = fulltext.getDefaultConfiguration();
             WebgraphConfiguration webgraphConfiguration = fulltext.getWebgraphConfiguration();
-            if (!this.crawlJobIsPaused(SwitchboardConstants.CRAWLJOB_LOCAL_CRAWL) && MemoryControl.request(256000000L, false) && Memory.load() < 1.0f) {
+            if (!this.crawlJobIsPaused(SwitchboardConstants.CRAWLJOB_LOCAL_CRAWL) && MemoryControl.available() > 512L * 1024L * 1024L && Memory.load() < 2.0f) {
                 
                 // we optimize first because that is useful for postprocessing
                 int proccount = 0;