Low frame rate in pygame on macbook, how to fix?

Question

Python

There is this code:

import pygame
from moviepy.editor import *

pygame.init()
screen = pygame.display.set_mode((1000, 625))

clip = VideoFileClip('video.mp4') 
clip.preview()
    
exit()

When running on a MacBook, the frame rate is very low, I tried to put more frames using clip.preview(fps=)
It did not help, I ran the same code on windows and the rate was normal. What's the matter? How to change frequency on Mac?