Improving Speed of Code Execution

[Michalis Phylactou]

Hi everyone
I am writing an MT5 multi-currency  EA that uses several indicators.

Rather than create Handles and Arrays for each Indicator/Currency I created functions to easily get the values for each indicator  that I use in the OnTick on every new candle. 
It takes however rather long to calculate.
Can anyone suggest an alternative?
Thank you

The functions

//+------------------------------------------------------------------+
//|                                                                  |
//+------------------------------------------------------------------+  
double Ma_Function(   
   string               symbol,            // symbol name 
   ENUM_TIMEFRAMES      period,            // period 
   int                  ma_period,         // averaging period 
   int                  ma_shift,          // horizontal shift 
   ENUM_MA_METHOD       ma_method,         // smoothing type 
   ENUM_APPLIED_PRICE   applied_price, // applied price 
   int                  buffernumber=0,   //buffer number
   int                  shift=0   //shift

)
{

   double valueArray[];
   ArraySetAsSeries(valueArray,true);
   int Handle=iMA(symbol,period,ma_period,ma_shift,ma_method,applied_price);
   CopyBuffer(Handle,buffernumber,shift,1,valueArray);
   
   double value=valueArray[0];
   return value;

}

//+------------------------------------------------------------------+
//|                                                                  |
//+------------------------------------------------------------------+  
double MACD_Function(   
   string              symbol,              // symbol name 
   ENUM_TIMEFRAMES     period,              // period 
   int                 fast_ema_period,     // period for Fast average calculation 
   int                 slow_ema_period,     // period for Slow average calculation 
   int                 signal_period,       // period for their difference averaging 
   ENUM_APPLIED_PRICE  applied_price,        // type of price or handle 
   int                  buffernumber=0,   //buffer number
   int                  shift=0   //shift
)
{

   double valueArray[];
   ArraySetAsSeries(valueArray,true);

   int Handle=iMACD(symbol,period,fast_ema_period, slow_ema_period,signal_period,applied_price);
   CopyBuffer(Handle,buffernumber,shift,1,valueArray);
   
   double value=valueArray[0];
   return value;
}
//+------------------------------------------------------------------+
//|                                                                  |
//+------------------------------------------------------------------+  
double RSI_Function(   
   string              symbol,              // symbol name 
   ENUM_TIMEFRAMES     period,              // period 
   int                 ma_period,     // period for Fast average calculation 
   ENUM_APPLIED_PRICE  applied_price,        // type of price or handle 
   int                  buffernumber=0,   //buffer number
   int                  shift=0   //shift
)
{

   double valueArray[];
   ArraySetAsSeries(valueArray,true);
   int Handle=iRSI(symbol,period,ma_period,applied_price);
      CopyBuffer(Handle,buffernumber,shift,1,valueArray);
   
   double value=valueArray[0];
   return value;
}

And I use the functions in the OnTick of the code on every new bar to get the values

for (int i=0; i<ArraySize(CurrencyList); i++)
{
            symbol=CurrencyList[i];
            double maLong=Ma_Function(symbol,periodos,MaLongLength,0,MaLongMethod,PRICE_CLOSE,0,shift);
            double maMed=Ma_Function(symbol,periodos,MaMedLength,0,MaMedMethod,PRICE_CLOSE,0,shift);
            double maShrt=Ma_Function(symbol,periodos,MaShrtLength,0,MaShrtMethod,PRICE_CLOSE,0,shift);
            double macd= MACD_Function(symbol,periodos,MACDFastEMA,MACDSlowEMA,MACDSMA,PRICE_CLOSE,0,shift);
            double rsi=RSI_Function(symbol,periodos,RSItrendlength,PRICE_CLOSE,0,shift);    

}