diff --git a/Include/MyIncludes/StochRSI_Fast_Calculator.mqh b/Include/MyIncludes/StochRSI_Fast_Calculator.mqh
new file mode 100644
index 0000000..540484d
--- /dev/null
+++ b/Include/MyIncludes/StochRSI_Fast_Calculator.mqh
@@ -0,0 +1,183 @@
+//+------------------------------------------------------------------+
+//|                                      StochRSI_Fast_Calculator.mqh|
+//|  Calculation engine for Standard and Heikin Ashi Fast StochRSI.  |
+//|                                        Copyright 2025, xxxxxxxx  |
+//+------------------------------------------------------------------+
+#property copyright "Copyright 2025, xxxxxxxx"
+
+#include <MyIncludes\RSI_Pro_Calculator.mqh> // Re-use the RSI Pro engine
+
+//+==================================================================+
+//|                                                                  |
+//|           CLASS 1: CStochRSI_Fast_Calculator (Base Class)        |
+//|                                                                  |
+//+==================================================================+
+class CStochRSI_Fast_Calculator
+  {
+protected:
+   int               m_rsi_period, m_k_period, m_d_period;
+   ENUM_MA_METHOD    m_d_ma_type;
+   CRSIProCalculator *m_rsi_calculator;
+
+   double            Highest(const double &array[], int period, int current_pos);
+   double            Lowest(const double &array[], int period, int current_pos);
+
+public:
+                     CStochRSI_Fast_Calculator(void);
+   virtual          ~CStochRSI_Fast_Calculator(void);
+
+   bool              Init(int rsi_p, int k_p, int d_p, ENUM_MA_METHOD d_ma);
+   void              Calculate(int rates_total, const double &open[], const double &high[], const double &low[], const double &close[], ENUM_APPLIED_PRICE price_type,
+                               double &k_buffer[], double &d_buffer[]);
+  };
+
+//+------------------------------------------------------------------+
+//| CStochRSI_Fast_Calculator: Constructor                           |
+//+------------------------------------------------------------------+
+CStochRSI_Fast_Calculator::CStochRSI_Fast_Calculator(void)
+  {
+   m_rsi_calculator = new CRSIProCalculator();
+  }
+
+//+------------------------------------------------------------------+
+//| CStochRSI_Fast_Calculator: Destructor                            |
+//+------------------------------------------------------------------+
+CStochRSI_Fast_Calculator::~CStochRSI_Fast_Calculator(void)
+  {
+   if(CheckPointer(m_rsi_calculator) != POINTER_INVALID)
+      delete m_rsi_calculator;
+  }
+
+//+------------------------------------------------------------------+
+//| CStochRSI_Fast_Calculator: Initialization                        |
+//+------------------------------------------------------------------+
+bool CStochRSI_Fast_Calculator::Init(int rsi_p, int k_p, int d_p, ENUM_MA_METHOD d_ma)
+  {
+   m_rsi_period = (rsi_p < 1) ? 1 : rsi_p;
+   m_k_period   = (k_p < 1) ? 1 : k_p;
+   m_d_period   = (d_p < 1) ? 1 : d_p;
+   m_d_ma_type  = d_ma;
+
+   if(CheckPointer(m_rsi_calculator) == POINTER_INVALID)
+      return false;
+   return m_rsi_calculator.Init(m_rsi_period, 1, MODE_SMA, 2.0); // Other params are not used
+  }
+
+//+------------------------------------------------------------------+
+//| CStochRSI_Fast_Calculator: Main Calculation Method               |
+//+------------------------------------------------------------------+
+void CStochRSI_Fast_Calculator::Calculate(int rates_total, const double &open[], const double &high[], const double &low[], const double &close[], ENUM_APPLIED_PRICE price_type,
+      double &k_buffer[], double &d_buffer[])
+  {
+   if(rates_total <= m_rsi_period + m_k_period + m_d_period)
+      return;
+   if(CheckPointer(m_rsi_calculator) == POINTER_INVALID)
+      return;
+
+   double rsi_buffer[], dummy1[], dummy2[], dummy3[];
+   ArrayResize(rsi_buffer, rates_total);
+   m_rsi_calculator.Calculate(rates_total, price_type, open, high, low, close, rsi_buffer, dummy1, dummy2, dummy3);
+
+   int k_start = m_rsi_period + m_k_period - 2;
+   for(int i = k_start; i < rates_total; i++)
+     {
+      double highest_rsi = Highest(rsi_buffer, m_k_period, i);
+      double lowest_rsi  = Lowest(rsi_buffer, m_k_period, i);
+      double range = highest_rsi - lowest_rsi;
+      if(range > 0.00001)
+         k_buffer[i] = (rsi_buffer[i] - lowest_rsi) / range * 100.0;
+      else
+         k_buffer[i] = (i > 0) ? k_buffer[i-1] : 50.0;
+     }
+
+   int d_start = k_start + m_d_period - 1;
+   for(int i = d_start; i < rates_total; i++)
+     {
+      switch(m_d_ma_type)
+        {
+         case MODE_EMA:
+         case MODE_SMMA:
+            if(i == d_start)
+              {
+               double sum=0;
+               for(int j=0; j<m_d_period; j++)
+                  sum+=k_buffer[i-j];
+               d_buffer[i]=sum/m_d_period;
+              }
+            else
+              {
+               if(m_d_ma_type==MODE_EMA)
+                 {
+                  double pr=2.0/(m_d_period+1.0);
+                  d_buffer[i]=k_buffer[i]*pr+d_buffer[i-1]*(1.0-pr);
+                 }
+               else
+                  d_buffer[i]=(d_buffer[i-1]*(m_d_period-1)+k_buffer[i])/m_d_period;
+              }
+            break;
+         case MODE_LWMA:
+           {double sum=0,w_sum=0; for(int j=0; j<m_d_period; j++) {int w=m_d_period-j; sum+=k_buffer[i-j]*w; w_sum+=w;} if(w_sum>0) d_buffer[i]=sum/w_sum;}
+         break;
+         default:
+           {double sum=0; for(int j=0; j<m_d_period; j++) sum+=k_buffer[i-j]; d_buffer[i]=sum/m_d_period;}
+         break;
+        }
+     }
+  }
+
+//+------------------------------------------------------------------+
+//| Finds the highest value in a given period of an array.           |
+//+------------------------------------------------------------------+
+double CStochRSI_Fast_Calculator::Highest(const double &array[], int period, int current_pos)
+  {
+   double res = array[current_pos];
+   for(int i = 1; i < period; i++)
+     {
+      int index = current_pos - i;
+      if(index < 0)
+         break;
+      if(res < array[index])
+         res = array[index];
+     }
+   return(res);
+  }
+
+//+------------------------------------------------------------------+
+//| Finds the lowest value in a given period of an array.            |
+//+------------------------------------------------------------------+
+double CStochRSI_Fast_Calculator::Lowest(const double &array[], int period, int current_pos)
+  {
+   double res = array[current_pos];
+   for(int i = 1; i < period; i++)
+     {
+      int index = current_pos - i;
+      if(index < 0)
+         break;
+      if(res > array[index])
+         res = array[index];
+     }
+   return(res);
+  }
+
+//+==================================================================+
+//|                                                                  |
+//|         CLASS 2: CStochRSI_Fast_Calculator_HA (Heikin Ashi)      |
+//|                                                                  |
+//+==================================================================+
+class CStochRSI_Fast_Calculator_HA : public CStochRSI_Fast_Calculator
+  {
+public:
+                     CStochRSI_Fast_Calculator_HA(void);
+  };
+
+//+------------------------------------------------------------------+
+//| CStochRSI_Fast_Calculator_HA: Constructor                        |
+//+------------------------------------------------------------------+
+CStochRSI_Fast_Calculator_HA::CStochRSI_Fast_Calculator_HA(void)
+  {
+   if(CheckPointer(m_rsi_calculator) != POINTER_INVALID)
+      delete m_rsi_calculator;
+   m_rsi_calculator = new CRSIProCalculator_HA();
+  }
+//+------------------------------------------------------------------+
+//+------------------------------------------------------------------+