[Python] python-docx add_picture slowly [closed]

A total of 600 images took 100 seconds, and the generated file size was 150MB. I think it's too slow, the main reason add_picture.

1. Can add_picture be executed in parallel?
2. Generate multiple docx in parallel and finally merge it together?

import time, os
from docx import Document
from docx.shared import Inches
doc = Document()
paths = ['uploads/file_path/1700000000/' + x for x in os.listdir('uploads/file_path/1700000000') if x.endswith('png')]
at = time.time()
for i, p in enumerate(paths):
doc.add_heading(str(i), level=1)
doc.add_picture(p, width=Inches(5.12))
doc.save('D:\\Users\\User\Desktop\\1.docx')
print(time.time() - at)

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