diff --git a/docs/PERFORMANCE.md b/docs/PERFORMANCE.md
index abf779db7..8abd4d349 100755
--- a/docs/PERFORMANCE.md
+++ b/docs/PERFORMANCE.md
@@ -26,6 +26,10 @@ A large database or oversized log files can impact performance. You can check da
 > * No table should exceed **10,000 rows** in a healthy system.
 > * Actual values vary based on network activity and plugin settings.
 
+Please note that excessively large log files will increase memory consumption. Decrease `MAINT_LOG_LENGTH` if you want to optimize memory use and increase it when debugging issues. See below chart on memory use after logs cleanup.
+
+![memory use after excessive log clean up](./img/PERFORMANCE/logs_memory_usage.png)
+
 ---
 
 ## Maintenance Plugins
diff --git a/docs/img/PERFORMANCE/logs_memory_usage.png b/docs/img/PERFORMANCE/logs_memory_usage.png
new file mode 100644
index 000000000..13376362b
Binary files /dev/null and b/docs/img/PERFORMANCE/logs_memory_usage.png differ
diff --git a/front/plugins/maintenance/config.json b/front/plugins/maintenance/config.json
index b69e6a2da..7124e30b3 100755
--- a/front/plugins/maintenance/config.json
+++ b/front/plugins/maintenance/config.json
@@ -228,7 +228,7 @@
           }
         ]
       },
-      "default_value": 250000,
+      "default_value": 10000,
       "options": [],
       "localized": ["name", "description"],
       "name": [
@@ -240,7 +240,7 @@
       "description": [
         {
           "language_code": "en_us",
-          "string": "How many last <code>app.log</code> lines to keep. If <code>LOG_LEVEL</code> is set to <code>debug</code> the app generates about 10000 lines per hour, so when debugging an issue the recommended setting should cover the bug occurence timeframe. For example for a bug with a 3 day periodical appearence the value <code>1000000</code> should be sufficient. Setting this value to <code>1000000</code> generates approximatelly a 50MB <code>app.log</code> file. Set to <code>0</code> to disable log purging."
+          "string": "How many log entries to keep. When <code>LOG_LEVEL</code> is set to <code>debug</code>, the application generates about 10,000 log entries per hour. Choose a value that covers the expected bug occurrence window. For example, <code>1000000</code> lines (~50 MB) is typically sufficient for issues that occur every 3 days. Set to <code>0</code> to disable log purging. Larger log files increase memory usage, so reduce the value after debugging is complete."
         }
       ]
     },