--- librfid.orig/src/rfid_proto_mifare_ul.c	(revision 2085)
+++ librfid/src/rfid_proto_mifare_ul.c	(working copy)
@@ -34,8 +34,8 @@
 
 
 /* FIXME */
-#define MIFARE_UL_READ_FWT	100
-#define MIFARE_UL_WRITE_FWT	100
+#define MIFARE_UL_READ_FWT	200
+#define MIFARE_UL_WRITE_FWT	800
 
 static int
 mful_read(struct rfid_protocol_handle *ph, unsigned int page,