The programming speed improved to 3 s with PG4UW v3.31/03.07,
that is acceptable speed.

Thank you for support

Hello, What should be theoretical speed of programmin PIC12F615 via ISP and hex size of 6 kb. I have 10 s with verification and seem a bit long time for 6kb, especialy for serial production. I am using "Windows 10" on i7-6500U CPU 64bit, 16 Gb of RAM and software version "PG4UW v3.25r...