Does Avast! 4 Workstation takes more resource than pro version?

I notice that my Windows boot time is much more longer than ever.

If you’re asking if the Home version uses more resources than the Professional version, my answer is not. The contrary is not true either. Both versions use the same resources. You can see if disabling scanning of the dll could help (although it’s very less secure).
Uncheck, for test, the last option here…