diff --git a/core/src/main/java/lucee/commons/i18n/FormatUtil.java b/core/src/main/java/lucee/commons/i18n/FormatUtil.java
index 5e4c28f8e9..1b0f612183 100644
--- a/core/src/main/java/lucee/commons/i18n/FormatUtil.java
+++ b/core/src/main/java/lucee/commons/i18n/FormatUtil.java
@@ -33,6 +33,7 @@
 import java.util.Map;
 import java.util.TimeZone;
 import java.util.concurrent.ConcurrentHashMap;
+import java.util.concurrent.CopyOnWriteArrayList;
 
 import lucee.commons.date.TimeZoneConstants;
 import lucee.commons.io.IOUtil;
@@ -121,7 +122,7 @@ public static List<FormatterWrapper> getAllFormats(Locale locale, TimeZone timeZ
 				sr = cfmlFormats.get(key);
 				if (sr == null || (formatter = sr.get()) == null) {
 
-					formatter = new ArrayList<>();
+					formatter = new CopyOnWriteArrayList<>();
 
 					for (FormatterWrapper dtf: getCFMLFormats(locale, timeZone, lenient)) {
 						formatter.add(dtf);
diff --git a/core/src/main/java/lucee/runtime/op/date/DateCaster.java b/core/src/main/java/lucee/runtime/op/date/DateCaster.java
index e60413c404..5fee96e677 100755
--- a/core/src/main/java/lucee/runtime/op/date/DateCaster.java
+++ b/core/src/main/java/lucee/runtime/op/date/DateCaster.java
@@ -67,10 +67,15 @@ public final class DateCaster {
 	// private static short MODE_MONTH_STR=2;
 	// private static short MODE_NONE=4;
 	private static long DEFAULT_VALUE = Long.MIN_VALUE;
-
 	private static DateTimeUtil util = DateTimeUtil.getInstance();
 	public static boolean classicStyle = false;
 
+	private static final int SORT_AFTER_FIRST = 500;
+	private static final int SORT_AFTER = 10000;
+
+	private static boolean firstCountCheck = true;
+	private static int countCheck = 0;
+
 	/**
 	 * converts an Object to a DateTime Object (Advanced but slower)
 	 * 
@@ -295,10 +300,8 @@ public static DateTime toDateTime(Locale locale, String str, TimeZone tz, DateTi
 		return (dt == null) ? defaultValue : dt;
 	}
 
-	private static int count = 0;
-
 	public static DateTime toDateTimeNew(Locale locale, String str, TimeZone tz, DateTime defaultValue, boolean useCommomDateParserAsWell) {
-		count++;
+		countCheck++;
 		str = str.trim();
 		tz = ThreadLocalPageContext.getTimeZone(tz);
 
@@ -317,16 +320,16 @@ public static DateTime toDateTimeNew(Locale locale, String str, TimeZone tz, Dat
 			}
 		}
 		finally {
-			if (count > 10) {
+			if (countCheck > (firstCountCheck ? SORT_AFTER_FIRST : SORT_AFTER)) {
 				synchronized (all) {
-					if (count > 500) {
+					if (countCheck > (firstCountCheck ? SORT_AFTER_FIRST : SORT_AFTER)) {
 						all.sort(Comparator.comparingInt(x -> -x.successCount));
-						count = 0;
+						countCheck = 0;
+						firstCountCheck = false;
 					}
 				}
 			}
 		}
-
 		if (useCommomDateParserAsWell) return DateCaster.toDateSimple(str, CONVERTING_TYPE_NONE, true, tz, defaultValue);
 		return defaultValue;
 	}
diff --git a/loader/build.xml b/loader/build.xml
index c992e3a93d..d93fa3ca81 100644
--- a/loader/build.xml
+++ b/loader/build.xml
@@ -2,7 +2,7 @@
 <project default="core" basedir="." name="Lucee" 
   xmlns:resolver="antlib:org.apache.maven.resolver.ant">
 
-  <property name="version" value="6.2.0.93-SNAPSHOT"/>
+  <property name="version" value="6.2.0.94-SNAPSHOT"/>
 
   <taskdef uri="antlib:org.apache.maven.resolver.ant" resource="org/apache/maven/resolver/ant/antlib.xml">
     <classpath>
diff --git a/loader/pom.xml b/loader/pom.xml
index 5ea6f81917..624ff7e4db 100644
--- a/loader/pom.xml
+++ b/loader/pom.xml
@@ -3,7 +3,7 @@
 
   <groupId>org.lucee</groupId>
   <artifactId>lucee</artifactId>
-  <version>6.2.0.93-SNAPSHOT</version>
+  <version>6.2.0.94-SNAPSHOT</version>
   <packaging>jar</packaging>
 
   <name>Lucee Loader Build</name>