diff --git a/Indicators/MyIndicators/MovingAverage_Ribbon_Pro.mq5 b/Indicators/MyIndicators/MovingAverage_Ribbon_Pro.mq5
index 741083a..8db3939 100644
--- a/Indicators/MyIndicators/MovingAverage_Ribbon_Pro.mq5
+++ b/Indicators/MyIndicators/MovingAverage_Ribbon_Pro.mq5
@@ -1,10 +1,9 @@
 //+------------------------------------------------------------------+
 //|                                     MovingAverage_Ribbon_Pro.mq5 |
 //|                                          Copyright 2025, xxxxxxxx|
-//|                                                                  |
 //+------------------------------------------------------------------+
 #property copyright "Copyright 2025, xxxxxxxx"
-#property version   "2.00" // Added fully customizable lines
+#property version   "2.10" // Optimized for incremental calculation
 #property description "A 4-line Moving Average Ribbon with fully customizable periods and types."
 
 #property indicator_chart_window
@@ -105,12 +104,28 @@ int OnInit()
 void OnDeinit(const int reason) { if(CheckPointer(g_calculator) != POINTER_INVALID) delete g_calculator; }
 
 //+------------------------------------------------------------------+
-int OnCalculate(const int rates_total, const int, const datetime&[], const double &open[], const double &high[], const double &low[], const double &close[], const long&[], const long&[], const int&[])
+//| Custom indicator calculation function.                           |
+//+------------------------------------------------------------------+
+int OnCalculate(const int rates_total,
+                const int prev_calculated, // <--- Now used!
+                const datetime &time[],
+                const double &open[],
+                const double &high[],
+                const double &low[],
+                const double &close[],
+                const long &tick_volume[],
+                const long &volume[],
+                const int &spread[])
   {
    if(CheckPointer(g_calculator) == POINTER_INVALID)
       return 0;
+
    ENUM_APPLIED_PRICE price_type = (InpSourcePrice <= PRICE_HA_CLOSE) ? (ENUM_APPLIED_PRICE)(-(int)InpSourcePrice) : (ENUM_APPLIED_PRICE)InpSourcePrice;
-   g_calculator.Calculate(rates_total, price_type, open, high, low, close, BufferMA1, BufferMA2, BufferMA3, BufferMA4);
+
+//--- Delegate calculation with prev_calculated optimization
+   g_calculator.Calculate(rates_total, prev_calculated, price_type, open, high, low, close,
+                          BufferMA1, BufferMA2, BufferMA3, BufferMA4);
+
    return(rates_total);
   }
 //+------------------------------------------------------------------+