After reinstalling windows start up feels slower

My computer was able to boot up fast enough that it skips the windows animation at boot-up halfway. After reinstalling windows it no-longer does this and feels slightly slower but not much of a problem, I installed all of my updates.. I don't know how to make my computer do what it used to do.. that's how it was factory setting but i needed to reinstall my pc so i can have different drivers, which work better for my overall set-up. sound etc.

This isn't the problem, i also have almost no programs installed on my computer. but to answer your question more directly I've tried this.

My windows was installed on my SSD, and reinstalled on it too, so running defrag would help?

Im not exactly clever, what do you mean by "updating the firmware"?

I still have the back-up of my older OS(factory settings with some of my tweaks), which i saved just before reinstalling windows.. i could use that but im scared that what i've done was probably perm

INTEL 320(SSDSA2BW12​0G3) 120GB SSD 2.5" SATA II Solid State Drive