You changed .docx to .doc

Has nothing to do with this. The documents in my folder are originally in .doc format, and the suffix name has not been changed. And I just changed the .docx in the program to .doc, but the result is still the same, word will be opened very slowly

@movi

Check if your document is opening very slowly~

Too many formats, pictures, external links...

Move the word object outside for~

    word=wc.Dispatch('Word.Application')
    for path1 in os.listdir(paths):
        …………

    word.Quit()