trainers reverted to normal ranking time

src/engine/objects/NPC.java

@@ -1152,9 +1152,13 @@ public class NPC extends AbstractCharacter {
 
         upgradeTime = Integer.MAX_VALUE;
 
-        if (this.getRank() < 7)
-            return 5;
-
+        if (this.getRank() < 7) {
+            if(this.contract.getName().contains("Trainer") == false){
+                return 5;
+            }else{
+                return this.getRank() * 8;
+        }
+        }
         return 0;
     }