Docx Convert-to PDF taking a long time on large documents

Hi I am using convert-to in order to convert docx/xlsx files into PDFs. I have quite large documents and running this headless takes >20-30 mins in order to convert the files. Is there a way to make this multi-threaded or run concurrently on the same file or am I stuck with 1 instance running? Any suggestions or recommendations?

This converts twice. First it converts the input file into the native file format ODF and then it converts from ODF to PDF. If you want to speed this up, install MS Word and a virtual PDF printer.

To resolve this instead of converting to DOCX->ODF->PDF we decided to use XML power tools and convert DOCX->HTML->PDF. It’s much faster and actually completes.

@wdlax, could you please mark your answer as the solution so contributors do not spend more time on your question? Thanks.