Accessing data from other timeframes problem

Hi Experts,

I have written a fairly simple indicator which, when included on a chart will get data from 2 custom indicators on 3 different timeframes for the particular currency pair that is on. I then display this in a small table as shown:

The code for this is :

string chart[] = {"H1", "H4", "D1"};
int i,ydist;

int init()
  {
//---- indicators
   
    ydist = 10;  
    //set up Trade headers 
    for(i=0;i<=2;i++)
    {
    ObjectCreate("txt"+i,OBJ_LABEL,0,0,0,0);
    ObjectSet("txt"+i, OBJPROP_XDISTANCE,750);
    ObjectSet("txt"+i, OBJPROP_YDISTANCE,ydist);
    ObjectSetText("txt"+i,"Trade"+" "+chart[i],12, "Times New Roman Bold", Yellow);
    ydist+= 20;
    }
    
    ydist = 10;
    //set up label area for arrows
    for(i=0;i<=2;i++)
    {
    ObjectCreate("arrow"+i,OBJ_LABEL,0,0,0,0);
    ObjectSet("arrow"+i, OBJPROP_XDISTANCE,825);
    ObjectSet("arrow"+i, OBJPROP_YDISTANCE,ydist);
    ydist+= 20;
    }
     
    ydist = 10;
    //set up label area for signal text
    for(i=0;i<=2;i++)
    {
    ObjectCreate("sign"+i,OBJ_LABEL,0,0,0);
    ObjectSet("sign"+i,OBJPROP_XDISTANCE,875);
    ObjectSet("sign"+i,OBJPROP_YDISTANCE,ydist);
    ObjectSetText("sign"+i,"Signal: ",12, "Times New Roman Bold", Yellow);
    ydist+=20;
    }
   
    //label areas for signal values   
    ydist=10;
    for(i=0;i<=2;i++)
    {
    ObjectCreate("val"+i,OBJ_LABEL,0,0,0);
    ObjectSet("val"+i,OBJPROP_XDISTANCE,925);
    ObjectSet("val"+i,OBJPROP_YDISTANCE,ydist);
    ydist+=20;
    }
   indicators();
//----
   return(0);
  }
//+------------------------------------------------------------------+
//| Custom indicator deinitialization function                       |
//+------------------------------------------------------------------+
int deinit()
  {
//----
   
//----
   return(0);
  }
//+------------------------------------------------------------------+
//| Custom indicator iteration function                              |
//+------------------------------------------------------------------+

int start()
  {
   
   indicators(); 
//----
   
//----
   return(0);
  }
//+------------------------------------------------------------------+

   void indicators()
   {
   int period;
   string arrow;
   double value, signal;
   double sma_chart;
   
   for(i=0;i<=2;i++)
     {
      switch(i)
        {
         case 0 :period = PERIOD_H1;break;
         case 1 :period = PERIOD_H4;break;
         case 2 :period = PERIOD_D1;break;
        }
  
      double price;
      price = MarketInfo(Symbol(),MODE_BID);
      
      //gets the value of all custom indicators at 'close' of current candle
      value = iCustom(NULL,period,"custom1",0,0)
      signal = iCustom(NULL,period, "custom2",2,5,3,1,0);
      sma_chart = iMA(NULL,period,60,0,MODE_SMA,PRICE_CLOSE,0);
   
      //determine trade conditions & display arrows
     if(price > sma_chart && price > value && signal > 0)ObjectSetText("arrow"+i,CharToStr(217),12,"Wingdings",Green);
         else if(price < sma_chart && price < value && signal < 0){ObjectSetText("arrow"+i,CharToStr(218),12,"Wingdings",Red);
                    }else{ObjectSetText("arrow"+i,CharToStr(216),12,"Wingdings",Orange);}
                    
      //displays signal values from custom2 indicator 
      ObjectSetText("val"+i,DoubleToStr(signal,4),12, "Times New Roman Bold", Yellow);                     
      } 
     WindowRedraw(); 
     return;

So if I have this indicator dropped on to >10 charts and open MT4 it takes close to 2 minutes to open. When I change timeframes on a currency pair the chart takes more than 5 secs to load.

Can anybody offer reasons why this happens? Is it a memory allocation problem?