That is rather strange... my e5300 (2.6GHz like yours) with only 1GB RAM boots up in 35 secs, if i increase it to 2GB or more it will take around 28secs as i have seen in a friend's identical setup. But my HDD is a WD 7200RPM, if that should make any difference. And in the 10months i have installed 7 there has been no slowdown whatsoever as people say sometimes. I have the security setup in my sig with nor realtime av as well. Autostart is just sandboxie.
in my Core i7 8GB W7 machine it take like 25 seconds and i suspect my big problem is the 1TB HDD i want to see and huge improvement when i throw an SSD Flash Drive inside of my PC