[Python] Is setting `turtle.speed(0)` necessary when we have turtle.tracer(0)

Is there a difference between:

import turtle
turtle.tracer(0)
turtle.speed(0)
while True:
turtle.goto(turtle.xcor()+1)
turtle.update()


And:

import turtle
turtle.tracer(0)
while True:
turtle.goto(turtle.xcor()+1)
turtle.update()


I've heard that setting turtle.speed(0) make things faster, but if so, I don't see any difference.

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