Lower PostScript-to-PostScript cost such that PostScript files are sent to
PostScript printers directly without intermediate conversion to PDF, see
https://wiki.linuxfoundation.org/openprinting/pdf_as_standard_print_job_format

--- conf/mime.convs.in.orig	2013-06-07 01:00:33 UTC
+++ conf/mime.convs.in
@@ -38,7 +38,7 @@
 # PostScript filters
 #
 
-application/postscript		application/vnd.cups-postscript	66	pstops
+application/postscript		application/vnd.cups-postscript	65	pstops
 
 ########################################################################
 #
