PIC : Problem with LCD Initialization

As we are developing our application based on the PIC18F66K22. We need to interface LCD with it. We have the LCD working with it but the problem that we are getting is that the LCD initialization takes around 10 Sec and only after that the LCD starts till then even microcontrooller does not execute any commands.But after initialization it works as expected without any delay. What might be causing the problem ? The LCD controller is ili9163C. The datasheet can be found at https://www.displaytech-us.com/sites/default/files/driver-ic-data-sheet/ILI9163C_DS_V010_2011_0118.pdf .

The following is the initialization code.

void LCD_init()
{
Send_Command(0x11); //Exit Sleep   
delay_ms(50);   
Send_Command(0x26); //Set Default Gamma   
Send_Data(0x04);   
// Send_Command(0xF2); //E0h & E1h Enable/Disable   
// Send_Data(0x00);   
Send_Command(0xB1);   
Send_Data(0x0C);   
Send_Data(0x14);   
Send_Command(0xC0); //Set VRH1[4:0] & VC[2:0] for VCI1 & GVDD   
Send_Data(0x0C);   
Send_Data(0x05);   
Send_Command(0xC1); //Set BT[2:0] for AVDD & VCL & VGH & VGL   
Send_Data(0x02);   
Send_Command(0xC5); //Set VMH[6:0] & VML[6:0] for VOMH & VCOML   
Send_Data(0x29);   
Send_Data(0x43);   
Send_Command(0xC7);   
Send_Data(0x40);   
Send_Command(0x3a); //Set Color Format   
Send_Data(0x55);   
Send_Command(0x2A); //Set Column Address   
Send_Data(0x00);   
Send_Data(0x00);   
Send_Data(0x00);   
Send_Data(0x7F);   
Send_Command(0x2B); //Set Page Address   
Send_Data(0x00);   
Send_Data(0x00);   
Send_Data(0x00);   
Send_Data(0x9F);   
Send_Command(0x36); //Set Scanning Direction   
Send_Data(0xA8);   
Send_Command(0xB7); //Set Source Output Direction   
Send_Data(0x00);   
Send_Command(0xf2); //Enable Gamma bit   
Send_Data(0x01);   
Send_Command(0xE0);   
Send_Data(0x36);//p1   
Send_Data(0x29);//p2   
Send_Data(0x12);//p3   
Send_Data(0x22);//p4   
Send_Data(0x1C);//p5   
Send_Data(0x15);//p6   
Send_Data(0x42);//p7   
Send_Data(0xB7);//p8   
Send_Data(0x2F);//p9   
Send_Data(0x13);//p10   
Send_Data(0x12);//p11   
Send_Data(0x0A);//p12   
Send_Data(0x11);//p13   
Send_Data(0x0B);//p14   
Send_Data(0x06);//p15   
Send_Command(0xE1);   
Send_Data(0x09);//p1   
Send_Data(0x16);//p2   
Send_Data(0x2D);//p3   
Send_Data(0x0D);//p4   
Send_Data(0x13);//p5   
Send_Data(0x15);//p6   
Send_Data(0x40);//p7   
Send_Data(0x48);//p8   
Send_Data(0x53);//p9   
Send_Data(0x0C);//p10   
Send_Data(0x1D);//p11   
Send_Data(0x25);//p12   
Send_Data(0x2E);//p13   
Send_Data(0x34);//p14   
Send_Data(0x39);//p15   
Send_Command(0x29); // Display On
}

This is the main section

void main()
{
OSCCONbits.IRCF0 = 1;   //HFINTOSC 16MHz with PLLEN
OSCCONbits.IRCF1 = 1;
OSCCONbits.IRCF2 = 1;
OSCTUNEbits.PLLEN = 1;
delay_ms(5);
while(!OSCCONbits.IRCF2);   //wait for HF-INTOSC oscillator frequency is stable
delay_ms(5);
    Config_IO();
    lcd_reset();    //LCD reset
delay_ms(5);    //LCD reset complete delay`
    LCD_init();
font_init();

    TRISBbits.TRISB3 = 0;
TRISCbits.TRISC2 = 0;
RELAY_EN = 0;

FillFullLcd(WHITE);
//LCD_image (0,33,159,96,(unsigned char rom *)benchmark);
// sprintf(&FirmVerText[6],"%d.%d",FW[0]-0x30,FW[1]-0x30);
// setfont((void *)font_Calibri_10);
// LCD_OutText(50,97,FirmVerText,BLACK);
setfont((void *)font_Calibri_10); //added by shailesh
    LCD_OutText(50,99,FirmVerText,BLACK);//added by shailesh
    LCD_image (0,33,159,96,(unsigned char rom *)benchmark);
    delay_ms(3000);
    FillFullLcd(BLUE);
    Hstart = 0;
    Vstart = 0;
    radius = 5;
    Hend = 100;
    Vend = 75;
    color = BLUE;
LCD_draw_round_corner_box(2,33,157,96,75,LOGOC,1);
//LCD_Rectangle(2,33,157,96,LOGOC,1);
LCD_OutText(35,55, productstr,WHITE);
    delay_ms(2000);
    calibration();
    while(1);
    }

Here in this code it takes around 10 sec to paint the entire screen blue. but after that all the lcd operations are working perfectly fine and without delay. What might be causing the problem here ?