I2c - pic16f887 communication speed query

#include <16f887.h>
#device ADC=10
#use delay(clock=16000000)    
#fuses HS, NOWDT, NOPROTECT, NOLVP       
#use RS232(baud = 9600, xmit = PIN_C6, rcv = PIN_C7)
#use i2c(Master, sda=PIN_C4, scl=PIN_C3)
#include <flex_lcd.c>
#define P1B PIN_D5 
#define SLAVE1_WRT_ADDR   0x12
#define SLAVE1_READ_ADDR  0x13
      
       int16 temp_adc1;
       float temp1;
       int16 temp_adc2;
       float temp2;

       int16 volt_adc1;
       float volt1; 
       int16 volt_adc2;
       float volt2;
     
       
       int16 crnt_adc1;
       float crnt1;
       int16 crnt_adc2;
       float crnt2;

       int pwmv_adc1;
       int8 data;

void set_deadband(int8 deadband) 
{ 
#byte PWM1CON = 0x9B
      
if(deadband > 127) 
   deadband == 127; 

PWM1CON = deadband; 
} 
 


 void main()
 {
 lcd_init();
 setup_adc(ADC_CLOCK_DIV_32);
 setup_timer_2(T2_DIV_BY_16, 255, 1); 
 setup_ccp1(CCP_PWM_HALF_BRIDGE | CCP_PWM_H_H ); 
 output_low(P1B); 
 set_deadband(127);

while(1)
 {
        printf ( lcd_putc, "Battery Status\n" );
        delay_ms(5);	                         //print to lcd  --- clear LCD ---  lcd_putc("\f");
        printf ("Battery Status\n\r" );  //print to serial com
        delay_ms(5);
        
        //PWM
        
         set_adc_channel(4); //read analog input from channel 0
         delay_ms(10);
         pwmv_adc1 = read_adc();
         set_pwm1_duty(pwmv_adc1); 

		//I2c
   		
        i2c_start();
   		i2c_write(SLAVE1_READ_ADDR);
   		data = i2c_read(0);
   		i2c_stop();
        lcd_gotoxy(1,2);
        printf ( lcd_putc,"%5.1f", (float)data);
        lcd_putc("  i2c_temp");
        delay_ms(500);
   		printf("i2c_temp %d \n\r", data);
   		delay_ms(500);
		 
		//temperature measurement   
         
         set_adc_channel(0); //read analog input from channel 0
         delay_ms(10);
         temp_adc1 = read_adc();
         temp1 = 5.00*temp_adc1*100.00/1023.00;    // = temp_adc*0.48828125
         lcd_gotoxy(1,2);
         printf ( lcd_putc,"%5.1f", (float)temp1);   // printf(lcd_putc, "value = %lu \n",value)                      
         lcd_putc(223);		                        //this number 223 will display the degree sign
         lcd_putc('C');
         lcd_putc("  b1_temp");
         delay_ms(500);
         
         printf ("\n");
         printf ("%5.1f", (float)temp1);
         putc(223);
         putc('C');
         puts("  b1_temp");
         printf ("\n\r");
         delay_ms(5);
         
         set_adc_channel(1); //read analog input from channel 1
         delay_ms(10);
         temp_adc2 = read_adc();
         temp2 = temp_adc2*0.48828125;
         lcd_gotoxy(1,2);
         printf ( lcd_putc,"%5.1f", (float)temp2);
         lcd_putc(223);		//this number 223 will display the degree sign
         lcd_putc('C');
         lcd_putc("  b2_temp");
         delay_ms(500);
        
         printf ("%5.1f", (float)temp2);
         putc(223);
         putc('C');
         puts("  b2_temp");
         printf ("\n\r");
         delay_ms(5);
         
        //voltage measrement
        
         set_adc_channel(2); //read analog input from channel 2
         delay_ms(10);
         volt_adc1 = read_adc();
         volt1 = (volt_adc1*0.0048875855)+9;//(volt*5)/1023

         lcd_gotoxy(1,2);
         printf ( lcd_putc,"%5.1f", (float)volt1);
         lcd_putc('V');
         lcd_putc("  b1_volt");
         delay_ms(500);
        
         
         printf ("%5.1f", (float)volt1);
         putc('V');
         puts("  b1_volt");
         printf ("\n\r");
         delay_ms(5);
         if(volt1<=10.5)
         output_high(PIN_B2);
         else
         output_low(PIN_B2);
          
         set_adc_channel(5); //read analog input from channel 5
         delay_ms(10); 
         volt_adc2 = read_adc();
         volt2 = (volt_adc2*0.0048875855)+9;//(volt*5)/1023
         lcd_gotoxy(1,2);
         printf ( lcd_putc,"%5.1f", (float)volt2);
         lcd_putc('V');
         lcd_putc("  b2_volt");
         delay_ms(500);
         
         printf ("%5.1f", (float)volt2);
         putc('V');
         puts("  b2_volt");
         printf ("\n\r");
         delay_ms(5);
         if(volt2<=10.5)
         output_high(PIN_B3);
         else
         output_low(PIN_B3);
          
        // current measurement

         set_adc_channel(3); //read analog input from channel 3
         delay_ms(10);
         crnt_adc1 = read_adc();
         crnt1 = crnt_adc1*0.0048875855;//(volt*5)/1023
         lcd_gotoxy(1,2);
         printf ( lcd_putc,"%5.1f", (float)crnt1);
         lcd_putc('A');
         lcd_putc("  b1_crnt");
         delay_ms(500);
         
         printf ("%5.1f", (float)crnt1);
         putc('A');
         puts("  b1_crnt");
         printf ("\n\r");
         delay_ms(5);

         set_adc_channel(6); //read analog input from channel 6
         delay_ms(10);
         crnt_adc2 = read_adc();
         crnt2 = crnt_adc2*0.0048875855;//(volt*5)/1023
         lcd_gotoxy(1,2);
         printf ( lcd_putc,"%5.1f", (float)crnt2);
         lcd_putc('A');
         lcd_putc("  b2_crnt");
         delay_ms(500);
         
         printf ("%5.1f", (float)crnt2);
         putc('A');
         puts("  b2_crnt");
         printf ("\n\r");
         delay_ms(5);
}
}

#include <16F887.h>
#device adc=10
#fuses HS,NOWDT,PUT,BROWNOUT,NOLVP
#use delay(internal=8M) 
#use i2c(SLAVE, SDA=PIN_C4, SCL=PIN_C3, address=0x12)

int8 adc_result;

#INT_SSP
void ssp_interrupt()
{
int8 incoming, state;
state = i2c_isr_state();
if(state < 0x80)     // Master is sending data
  {
   incoming = i2c_read(); 
  }

if(state >= 0x80)   // Master is requesting data from slave
  {
   i2c_write(adc_result);
  }
}
//======================================
void main ()
{
setup_adc_ports( ALL_ANALOG );
setup_adc(ADC_CLOCK_DIV_8);
set_adc_channel(0);
delay_us(20);
adc_result = read_adc();
adc_result = adc_result*0.48828125;

enable_interrupts(INT_SSP);
enable_interrupts(GLOBAL);
   
while(1)
  {
   adc_result = read_adc();
   adc_result = adc_result*0.48828125;
   delay_ms(500);
  }

}