Is this too big for ISR ?

How about this code for ISR? would it run faster?

ISR(TIMER1_COMPA_vect) {  //Interrupt at freq of 250Hz
  distance = getDistance(Lsensor); 
  pressure = getPressure(Psensor);
  prSwitch = getPswitch(Pswitch); 
  temp = getTemperature(tmp); 
  Fldtemp = getTemperature(Fluidtmp); 
  
  toprint = 0; //reset buffer 
  toprint += drive; 
  toprint += ' '; 
  toprint += distance;
  toprint += ' '; 
  toprint += pressure; 
  toprint += ' '; 
  toprint += prSwitch; 
  toprint += ' '; 
  toprint += temp; 
  toprint += ' '; 
  toprint += Fldtemp; 
  
  Serial.println(toprint); 
}