Pdfcreator-cli.exe too much slow

I am pdf creator exe. - cli pdf to the document using the many excel I am going to change it.
Create a conversion program to a php windows.
Pdf creator exe. - cli excel in documents after converting pdf, does not shut down and cause a lot of time delay.
Running "pdfcreator-cli PrintFile /File="sample.xslx" /OutputFile="sample.pdf" on the CMD is not fast.
I wonder if there is a way to speed up the conversion.