CODE EXAMPLE FOR PYTHON

python time.sleep slow

from time import perf_counter as timer
import time
from ctypes import windll #new

timeBeginPeriod = windll.winmm.timeBeginPeriod #new
timeBeginPeriod(1) #new

start = timer()
for i in range(1000):
    print (i)
    time.sleep(0.001)

end = timer()
print ("Total time: ", end - start)