Does TotalPageCount affect report execution on production as well ?

Hi... As part of the mass report generation process an employee report needs to be run on production every month. The process runs for almost 2000-3000 customers and generats report for each of them. The static copies of this report is any mailed to each of tehse customers. The repot design uses TotalPageCount in a formula in the Page header of the report. I know use of this formula affects performance during report viewing. But does the use of TotalPageCount affect the report execution time when the report is being generated in mass numbers on production and scenario of report viewing does not exist ?