Clarify ZIP compression level semantics in documentation

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Co-authored-by: riccardobl <4943530+riccardobl@users.noreply.github.com>

Author: Copilot

jme3-networking/src/main/java/com/jme3/network/message/ZIPCompressedMessage.java

@@ -73,8 +73,8 @@ public ZIPCompressedMessage(Message msg, int level) {
 
     /**
      * Set the default compression level for newly created ZIP compressed messages,
-     * where 1 is the best compression but slower and 9 is the weakest compression
-     * but the quickest. Default is 6.
+     * where 1 is the weakest compression but quickest and 9 is the best
+     * compression but slowest. Default is 6.
      *
      * @param level The level.
      */