Suggestion on how to change the speed of servo

Hey guys,
I want to have different speed serving for my servomotor. I would like to ask how should I do it? From the sweep code below that I am currently using, if I wanted to adjust the speed do I adjust either the delay or the increment? Appreciate any helpful feedback.

Servo myservo; // create servo object to control a servo

int pos = 0; // variable to store the servo position

void setup()
{
myservo.attach(9); // attaches the servo on pin 9 to the servo object
}

void loop()
{
for(pos = 0; pos < 180; pos += 1) // goes from 0 degrees to 180 degrees
{ // in steps of 1 degree
myservo.write(pos); // tell servo to go to position in variable ‘pos’
delay(15); // waits 15ms for the servo to reach the position
}
for(pos = 180; pos>=1; pos-=1) // goes from 180 degrees to 0 degrees
{
myservo.write(pos); // tell servo to go to position in variable ‘pos’
delay(15); // waits 15ms for the servo to reach the position
}
}

Well, you could make the parameter of “delay” a variable, or for bonus points, get rid of “delay” altogether.

I’m a bit bored saying this but
for(pos = 0; pos < 180; pos += 1)  // goes from 0 degrees to 180 degrees clearly it doesn’t.
It would be better not to bother with the comment.

orbs: From the sweep code below that I am currently using, if I wanted to adjust the speed do I adjust either the delay or the increment?

Using a larger increment or smaller delay will increase the speed. Using the next available increment value (2) will double the speed.

Using a larger delay will decrease speed. You can't use an increment less than 1.

You will have more range of control by changing the delay.