FastReport slow export in PDF

I'm facing a serious slower problem in FastReport when exporting to PDF, it takes forever to generate the file, I've already changed several configurations in the component to see if it gets faster, but I did not succeed.

The code to generate the PDF is below:

if (SaveDialogPDF.Execute) then
begin
  frxReport3.PrepareReport(True);

  fdm.frxPDFExport.ShowDialog := False;
  fdm.frxPDFExport.FileName := SaveDialogPDF.FileName;
  frxReport3.Export(fdm.frxPDFExport);
end;

In the line frxReport3.PrepareReport(True); it is fast, but when it comes to generating it, it slows down.

I have no parameter to solve this problem, my machine has disk space and memory to spare and this happens on other machines as well.