Performance issue with simple PDFs

[MrCodingCoderCoding]

Hello,
I’m reaching out to report a performance issue I’ve encountered since upgrading to the latest version of PyMuPDF4LLM. After the update, I’ve observed a noticeable decrease in efficiency when working with simple PDFs, whereas the previous version consistently handled similar tasks more smoothly.

Here are some specific issues I noticed when extracting content from the "markdown.pdf" file:

• Bold and italicized text is misinterpreted.
• The text "### This is a test with headlines and tables:" is not a headline but marked as one
• Markdown formatting within tables does not function as expected (bold, italic, ... missing)

Additionally, I wanted to suggest a potential feature enhancement. It would be very useful to have built-in support for applying strikethrough text in the library. I have managed to implement a workaround, but native support for this feature in PyMuPDF4LLM would be a valuable addition.

Thank you for your time and for considering these improvements.

---

python: 3.11.9 / 2.7.18
pymupdf: ('1.24.11', '1.24.10', '20241003000001')
pymupdf4llm: 0.0.17