Update app.py

app.py

@@ -8,7 +8,7 @@ def pdf_to_word(pdf_file):
     docx_filename = pdf_file.name.replace('.pdf', '.docx')
     
     cv = Converter(pdf_file.name)
-    cv.convert(docx_filename, start=0, end=None)
+    cv.convert(docx_filename, multi_processing=True, start=0, end=None)
     cv.close()
     
     return docx_filename